0d831770b1
This extends the current SH DMA API somewhat to support a proper virtual channel abstraction, and also works to represent this through the driver model by giving each DMAC its own platform device. There's also a few other minor changes to support a few new CPU subtypes, and make TEI generation for the SH DMAC configurable. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* include/asm-sh/bus-sh.h
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*
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* Copyright (C) 2004 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef __ASM_SH_BUS_SH_H
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#define __ASM_SH_BUS_SH_H
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extern struct bus_type sh_bus_types[];
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struct sh_dev {
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struct device dev;
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char *name;
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unsigned int dev_id;
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unsigned int bus_id;
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struct resource res;
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void *mapbase;
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unsigned int irq[6];
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u64 *dma_mask;
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u64 coherent_dma_mask;
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};
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#define to_sh_dev(d) container_of((d), struct sh_dev, dev)
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#define sh_get_drvdata(d) dev_get_drvdata(&(d)->dev)
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#define sh_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p))
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struct sh_driver {
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struct device_driver drv;
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unsigned int dev_id;
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unsigned int bus_id;
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int (*probe)(struct sh_dev *);
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int (*remove)(struct sh_dev *);
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int (*suspend)(struct sh_dev *, pm_message_t);
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int (*resume)(struct sh_dev *);
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};
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#define to_sh_driver(d) container_of((d), struct sh_driver, drv)
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#define sh_name(d) ((d)->dev.driver->name)
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/*
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* Device ID numbers for bus types
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*/
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enum {
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SH_DEV_ID_USB_OHCI,
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};
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#define SH_NR_BUSES 1
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#define SH_BUS_NAME_VIRT "shbus"
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enum {
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SH_BUS_VIRT,
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};
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/* arch/sh/kernel/cpu/bus.c */
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extern int sh_device_register(struct sh_dev *dev);
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extern void sh_device_unregister(struct sh_dev *dev);
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extern int sh_driver_register(struct sh_driver *drv);
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extern void sh_driver_unregister(struct sh_driver *drv);
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#endif /* __ASM_SH_BUS_SH_H */
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