Projet_SETI_RISC-V/riscv-gnu-toolchain/newlib/libgloss/sparc_leon/asm-leon/lambapp.h
2023-03-06 14:48:14 +01:00

177 lines
5.2 KiB
C

/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _LAMBAPP_H
#define _LAMBAPP_H
/* Include VENDOR and DEVICE definitions */
#include "lambapp_devs.h"
#ifdef __cplusplus
extern "C"
{
#endif
struct ambapp_dev_hdr;
struct ambapp_apb_info;
struct ambapp_ahb_info;
struct ambapp_dev_hdr
{
struct ambapp_dev_hdr *next; /* Next */
struct ambapp_dev_hdr *prev; /* Previous Device. If (this == prev->child) prev is bus bridge */
struct ambapp_dev_hdr *children; /* Points to first device on sub-bus */
void *owner; /* Owner of this AMBA device */
unsigned char dev_type; /* AHB MST, AHB SLV or APB SLV */
unsigned char vendor; /* Vendor ID */
unsigned short device; /* Device ID */
void *devinfo; /* Device info (APB or AHB depending on type) */
};
#define AMBAPP_FLAG_FFACT_DIR 0x100 /* Frequency factor direction, 0=down, 1=up */
#define AMBAPP_FLAG_FFACT 0x0f0 /* Frequency factor against top bus */
#define AMBAPP_FLAG_MBUS 0x00c
#define AMBAPP_FLAG_SBUS 0x003
struct ambapp_apb_info
{
/* COMMON */
unsigned char irq;
unsigned char ver;
/* APB SPECIFIC */
unsigned int start;
unsigned int mask;
};
struct ambapp_ahb_info
{
/* COMMON */
unsigned char irq;
unsigned char ver;
/* AHB SPECIFIC */
unsigned int start[4];
unsigned int mask[4];
char type[4]; /* type[N] Determine type of start[N]-mask[N], 2=AHB Memory Space, 3=AHB I/O Space */
unsigned int custom[3];
};
/* Describes a complete AMBA Core. Each device may consist of 3 interfaces */
struct ambapp_dev_info
{
char irq; /* irq=-1 indicate no IRQ */
unsigned char vendor;
unsigned short device;
int index; /* Core index if multiple "subcores" in one */
struct ambapp_ahb_info *ahb_mst;
struct ambapp_ahb_info *ahb_slv;
struct ambapp_apb_info *apb_slv;
};
struct ambapp_mmap
{
unsigned int size;
unsigned int local_adr;
unsigned int remote_adr;
};
/* Complete AMBA PnP information */
struct ambapp_bus
{
struct ambapp_mmap *mmaps;
struct ambapp_dev_hdr *root;
};
/*
* Return values
* 0 - continue
* 1 - stop scanning
*/
typedef int (*ambapp_func_t) (struct ambapp_dev_hdr * dev, int index,
int maxdepth, void *arg);
#define DEV_IS_FREE(dev) (dev->owner == NULL)
#define DEV_IS_ALLOCATED(dev) (dev->owner != NULL)
/* Options to ambapp_for_each */
#define OPTIONS_AHB_MSTS 0x00000001
#define OPTIONS_AHB_SLVS 0x00000002
#define OPTIONS_APB_SLVS 0x00000004
#define OPTIONS_ALL_DEVS (OPTIONS_AHB_MSTS|OPTIONS_AHB_SLVS|OPTIONS_APB_SLVS)
#define OPTIONS_FREE 0x00000010
#define OPTIONS_ALLOCATED 0x00000020
#define OPTIONS_ALL (OPTIONS_FREE|OPTIONS_ALLOCATED)
/* Depth first search, Defualt is breth first search. */
#define OPTIONS_DEPTH_FIRST 0x00000100
#define DEV_AHB_NONE 0
#define DEV_AHB_MST 1
#define DEV_AHB_SLV 2
#define DEV_APB_SLV 3
/* Structures used to access Plug&Play information directly */
struct ambapp_pnp_ahb
{
const unsigned int id; /* VENDOR, DEVICE, VER, IRQ, */
const unsigned int custom[3];
const unsigned int mbar[4]; /* MASK, ADDRESS, TYPE, CACHABLE/PREFETCHABLE */
};
struct ambapp_pnp_apb
{
const unsigned int id; /* VENDOR, DEVICE, VER, IRQ, */
const unsigned int iobar; /* MASK, ADDRESS, TYPE, CACHABLE/PREFETCHABLE */
};
#define ambapp_pnp_vendor(id) (((id) >> 24) & 0xff)
#define ambapp_pnp_device(id) (((id) >> 12) & 0xfff)
#define ambapp_pnp_ver(id) (((id)>>5) & 0x1f)
#define ambapp_pnp_irq(id) ((id) & 0x1f)
#define ambapp_pnp_start(mbar) (((mbar) & 0xfff00000) & (((mbar) & 0xfff0) << 16))
#define ambapp_pnp_mbar_mask(mbar) (((mbar)>>4) & 0xfff)
#define ambapp_pnp_mbar_type(mbar) ((mbar) & 0xf)
#define ambapp_pnp_apb_start(iobar, base) ((base) | ((((iobar) & 0xfff00000)>>12) & (((iobar) & 0xfff0)<<4)) )
#define ambapp_pnp_apb_mask(iobar) ((~(ambapp_pnp_mbar_mask(iobar)<<8) & 0x000fffff) + 1)
#define AMBA_TYPE_AHBIO_ADDR(addr,base_ioarea) ((unsigned int)(base_ioarea) | ((addr) >> 12))
#define AMBA_TYPE_APBIO 0x1
#define AMBA_TYPE_MEM 0x2
#define AMBA_TYPE_AHBIO 0x3
extern int find_apbslv (int vendor, int device,
struct ambapp_apb_info *dev);
#ifdef __cplusplus
}
#endif
#endif