src/rp2040/hardware_structs/include/hardware/structs/bus_ctrl.h

// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT

/*
 * Copyright (c) 2021 Raspberry Pi (Trading) Ltd.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef _HARDWARE_STRUCTS_BUS_CTRL_H
#define _HARDWARE_STRUCTS_BUS_CTRL_H

#include "hardware/address_mapped.h"
#include "hardware/regs/busctrl.h"

// Reference to datasheet: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf#tab-registerlist_busctrl
//
// The _REG_ macro is intended to help make the register navigable in your IDE (for example, using the "Go to Definition" feature)
// _REG_(x) will link to the corresponding register in hardware/regs/busctrl.h.
//
// Bit-field descriptions are of the form:
// BITMASK [BITRANGE]: FIELDNAME (RESETVALUE): DESCRIPTION

enum bus_ctrl_perf_counter {
    arbiter_rom_perf_event_access = 19,
    arbiter_rom_perf_event_access_contested = 18,
    arbiter_xip_main_perf_event_access = 17,
    arbiter_xip_main_perf_event_access_contested = 16,
    arbiter_sram0_perf_event_access = 15,
    arbiter_sram0_perf_event_access_contested = 14,
    arbiter_sram1_perf_event_access = 13,
    arbiter_sram1_perf_event_access_contested = 12,
    arbiter_sram2_perf_event_access = 11,
    arbiter_sram2_perf_event_access_contested = 10,
    arbiter_sram3_perf_event_access = 9,
    arbiter_sram3_perf_event_access_contested = 8,
    arbiter_sram4_perf_event_access = 7,
    arbiter_sram4_perf_event_access_contested = 6,
    arbiter_sram5_perf_event_access = 5,
    arbiter_sram5_perf_event_access_contested = 4,
    arbiter_fastperi_perf_event_access = 3,
    arbiter_fastperi_perf_event_access_contested = 2,
    arbiter_apb_perf_event_access = 1,
    arbiter_apb_perf_event_access_contested = 0
};

typedef struct {
    _REG_(BUSCTRL_PERFCTR0_OFFSET) // BUSCTRL_PERFCTR0
    // Bus fabric performance counter 0
    // 0x00ffffff [23:0]  : PERFCTR0 (0): Busfabric saturating performance counter 0
    io_rw_32 value;

    _REG_(BUSCTRL_PERFSEL0_OFFSET) // BUSCTRL_PERFSEL0
    // Bus fabric performance event select for PERFCTR0
    // 0x0000001f [4:0]   : PERFSEL0 (0x1f): Select an event for PERFCTR0
    io_rw_32 sel;
} bus_ctrl_perf_hw_t;

typedef struct {
    _REG_(BUSCTRL_BUS_PRIORITY_OFFSET) // BUSCTRL_BUS_PRIORITY
    // Set the priority of each master for bus arbitration
    // 0x00001000 [12]    : DMA_W (0): 0 - low priority, 1 - high priority
    // 0x00000100 [8]     : DMA_R (0): 0 - low priority, 1 - high priority
    // 0x00000010 [4]     : PROC1 (0): 0 - low priority, 1 - high priority
    // 0x00000001 [0]     : PROC0 (0): 0 - low priority, 1 - high priority
    io_rw_32 priority;

    _REG_(BUSCTRL_BUS_PRIORITY_ACK_OFFSET) // BUSCTRL_BUS_PRIORITY_ACK
    // Bus priority acknowledge
    // 0x00000001 [0]     : BUS_PRIORITY_ACK (0): Goes to 1 once all arbiters have registered the new global priority levels
    io_ro_32 priority_ack;

    bus_ctrl_perf_hw_t counter[4];
} bus_ctrl_hw_t;

#define bus_ctrl_hw ((bus_ctrl_hw_t *const)BUSCTRL_BASE)

#endif