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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22347 a95241bf-73f2-0310-859d-f6bbb57e9c96
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/*
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** Copyright 2002/03, Thomas Kurschel. All rights reserved.
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** Distributed under the terms of the OpenBeOS License.
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*/
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/*
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Part of Open IDE bus manager
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IDE bus manager interface
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*/
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#ifndef __IDE_H__
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#define __IDE_H__
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#include <bus_manager.h>
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#include <device_manager.h>
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#include <KernelExport.h>
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// Controller Driver Node
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// attributes:
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// node type
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#define IDE_BUS_TYPE_NAME "bus/ide/v1"
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// maximum number of devices connected to controller (uint8, optional, default:2)
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#define IDE_CONTROLLER_MAX_DEVICES_ITEM "ide/max_devices"
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// set to not-0 if DMA is supported (uint8, optional, default:0)
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// (if so, publish necessary blkdev restriction too)
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#define IDE_CONTROLLER_CAN_DMA_ITEM "ide/can_DMA"
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// set to not-0 if CQ is supported (uint8, optional, default:1)
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#define IDE_CONTROLLER_CAN_CQ_ITEM "ide/can_CQ"
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// name of controller (string, required)
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#define IDE_CONTROLLER_CONTROLLER_NAME_ITEM "ide/controller_name"
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union ide_task_file;
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typedef unsigned int ide_reg_mask;
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// interface of controller driver
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typedef struct {
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driver_module_info info;
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status_t (*write_command_block_regs)
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(void *channel_cookie, union ide_task_file *tf, ide_reg_mask mask);
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status_t (*read_command_block_regs)
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(void *channel_cookie, union ide_task_file *tf, ide_reg_mask mask);
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uint8 (*get_altstatus) (void *channel_cookie);
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status_t (*write_device_control) (void *channel_cookie, uint8 val);
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status_t (*write_pio) (void *channel_cookie, uint16 *data, int count, bool force_16bit );
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status_t (*read_pio) (void *channel_cookie, uint16 *data, int count, bool force_16bit );
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status_t (*prepare_dma)(void *channel_cookie,
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const physical_entry *sg_list, size_t sg_list_count,
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bool write);
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status_t (*start_dma)(void *channel_cookie);
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status_t (*finish_dma)(void *channel_cookie);
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} ide_controller_interface;
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// channel cookie, issued by ide bus manager
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typedef struct ide_bus_info *ide_channel;
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// Interface for Controller Driver
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// interface of bus manager as seen from controller driver
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// use this interface as the fixed consumer of your controller driver
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typedef struct {
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driver_module_info info;
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// status - status read from controller (_not_ alt_status, as reading
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// normal status acknowledges IRQ request of device)
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status_t (*irq_handler)( ide_channel channel, uint8 status );
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} ide_for_controller_interface;
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#define IDE_FOR_CONTROLLER_MODULE_NAME "bus_managers/ide/controller/v1"
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#endif /* __IDE_H__ */
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