/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __nosy_dump_h__
#define __nosy_dump_h__

#define array_length(array) (sizeof(array) / sizeof(array[0]))

#define ACK_NO_ACK   0x0
#define ACK_DONE(a)  ((a >> 2) == 0)
#define ACK_BUSY(a)  ((a >> 2) == 1)
#define ACK_ERROR(a) ((a >> 2) == 3)

#include <stdint.h>

struct phy_packet {
        uint32_t timestamp;
        union {
                struct {
                        uint32_t zero:24;
                        uint32_t phy_id:6;
                        uint32_t identifier:2;
                } common, link_on;

                struct {
                        uint32_t zero:16;
                        uint32_t gap_count:6;
                        uint32_t set_gap_count:1;
                        uint32_t set_root:1;
                        uint32_t root_id:6;
                        uint32_t identifier:2;
                } phy_config;

                struct {
                        uint32_t more_packets:1;
                        uint32_t initiated_reset:1;
                        uint32_t port2:2;
                        uint32_t port1:2;
                        uint32_t port0:2;
                        uint32_t power_class:3;
                        uint32_t contender:1;
                        uint32_t phy_delay:2;
                        uint32_t phy_speed:2;
                        uint32_t gap_count:6;
                        uint32_t link_active:1;
                        uint32_t extended:1;
                        uint32_t phy_id:6;
                        uint32_t identifier:2;
                } self_id;

                struct {
                        uint32_t more_packets:1;
                        uint32_t reserved1:1;
                        uint32_t porth:2;
                        uint32_t portg:2;
                        uint32_t portf:2;
                        uint32_t porte:2;
                        uint32_t portd:2;
                        uint32_t portc:2;
                        uint32_t portb:2;
                        uint32_t porta:2;
                        uint32_t reserved0:2;
                        uint32_t sequence:3;
                        uint32_t extended:1;
                        uint32_t phy_id:6;
                        uint32_t identifier:2;
                } ext_self_id;
        };
        uint32_t inverted;
        uint32_t ack;
};

#define TCODE_PHY_PACKET 0x10

#define PHY_PACKET_CONFIGURATION 0x00
#define PHY_PACKET_LINK_ON 0x01
#define PHY_PACKET_SELF_ID 0x02

struct link_packet {
        uint32_t timestamp;
        union {
                struct {
                        uint32_t priority:4;
                        uint32_t tcode:4;
                        uint32_t rt:2;
                        uint32_t tlabel:6;
                        uint32_t destination:16;

                        uint32_t offset_high:16;
                        uint32_t source:16;

                        uint32_t offset_low;
                } common;

                struct {
                        uint32_t common[3];
                        uint32_t crc;
                } read_quadlet;

                struct {
                        uint32_t common[3];
                        uint32_t data;
                        uint32_t crc;
                } read_quadlet_response;

                struct {
                        uint32_t common[3];
                        uint32_t extended_tcode:16;
                        uint32_t data_length:16;
                        uint32_t crc;
                } read_block;

                struct {
                        uint32_t common[3];
                        uint32_t extended_tcode:16;
                        uint32_t data_length:16;
                        uint32_t crc;
                        uint32_t data[0];
                        /* crc and ack follows. */
                } read_block_response;

                struct {
                        uint32_t common[3];
                        uint32_t data;
                        uint32_t crc;
                } write_quadlet;

                struct {
                        uint32_t common[3];
                        uint32_t extended_tcode:16;
                        uint32_t data_length:16;
                        uint32_t crc;
                        uint32_t data[0];
                        /* crc and ack follows. */
                } write_block;

                struct {
                        uint32_t common[3];
                        uint32_t crc;
                } write_response;

                struct {
                        uint32_t common[3];
                        uint32_t data;
                        uint32_t crc;
                } cycle_start;

                struct {
                        uint32_t sy:4;
                        uint32_t tcode:4;
                        uint32_t channel:6;
                        uint32_t tag:2;
                        uint32_t data_length:16;

                        uint32_t crc;
                } iso_data;
        };
};

struct subaction {
        uint32_t ack;
        size_t length;
        struct list link;
        struct link_packet packet;
};

struct link_transaction {
        int request_node, response_node, tlabel;
        struct subaction *request, *response;
        struct list request_list, response_list;
        struct list link;
};

int decode_fcp(struct link_transaction *t);

#endif /* __nosy_dump_h__ */