106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
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* driver_vec.h
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*
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* Interface for exposure of BaS drivers to the OS
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*
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* This file is part of BaS_gcc.
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*
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* BaS_gcc is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* BaS_gcc is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with BaS_gcc. If not, see <http://www.gnu.org/licenses/>.
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*
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* Created on: 24.10.2013
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* Author: Markus Fröschle
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*/
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#ifndef _DRIVER_VEC_H_
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#define _DRIVER_VEC_H_
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#include "xhdi_sd.h"
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#include "MCD_dma.h"
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enum driver_type
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{
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END_OF_DRIVERS, /* marks end of driver list */
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BLOCKDEV_DRIVER,
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CHARDEV_DRIVER,
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VIDEO_DRIVER,
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XHDI_DRIVER,
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MCD_DRIVER,
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};
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struct generic_driver_interface
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{
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uint32_t (*init)(void);
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uint32_t (*read)(void *buf, size_t count);
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uint32_t (*write)(const void *buf, size_t count);
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uint32_t (*ioctl)(uint32_t request, ...);
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};
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struct dma_driver_interface
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{
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int32_t version;
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int32_t magic;
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int32_t (*dma_set_initiator)(int initiator);
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uint32_t (*dma_get_initiator)(int requestor);
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void (*dma_free_initiator)(int requestor);
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int32_t (*dma_set_channel)(int requestor, void (*handler)(void));
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int (*dma_get_channel)(int requestor);
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void (*dma_free_channel)(int requestor);
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void (*dma_clear_channel)(int channel);
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int (*MCD_startDma)(int channel, int8_t *srcAddr, int16_t srcIncr, int8_t *destAddr, int16_t destIncr,
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uint32_t dmaSize, uint32_t xferSize, uint32_t initiator, int32_t priority, uint32_t flags,
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uint32_t funcDesc);
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int (*MCD_dmaStatus)(int channel);
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int (*MCD_XferProgrQuery)(int channel, MCD_XferProg *progRep);
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int (*MCD_killDma)(int channel);
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int (*MCD_continDma)(int channel);
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int (*MCD_pauseDma)(int channel);
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int (*MCD_resumeDma)(int channel);
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int (*MCD_csumQuery)(int channel, uint32_t *csum);
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void *(*dma_malloc)(long amount);
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int (*dma_free)(void *addr);
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};
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struct xhdi_driver_interface
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{
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uint32_t (*xhdivec)();
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};
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union interface
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{
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struct generic_driver_interface *gdi;
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struct xhdi_driver_interface *xhdi;
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struct dma_driver_interface *dma;
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};
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struct generic_interface
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{
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enum driver_type type;
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char name[16];
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char description[64];
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int version;
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int revision;
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union interface interface;
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};
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struct driver_table
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{
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uint32_t bas_version;
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uint32_t bas_revision;
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uint32_t (*remove_handler)(); /* calling this will disable the BaS' hook into trap #0 */
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struct generic_interface *interfaces[];
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};
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#endif /* _DRIVER_VEC_H_ */
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