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55e331cf7e
Add support for the TI VLYNQ high-speed, serial and packetized bus. This bus allows external devices to be connected to the System-on-Chip and appear in the main system memory just like any memory mapped peripheral. It is widely used in TI's networking and multimedia SoC, including the AR7 SoC. Signed-off-by: Eugene Konev <ejka@imfi.kspu.ru> Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
162 lines
3.9 KiB
C
162 lines
3.9 KiB
C
/*
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* Copyright (C) 2006, 2007 Eugene Konev <ejka@openwrt.org>
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __VLYNQ_H__
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#define __VLYNQ_H__
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#define VLYNQ_NUM_IRQS 32
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struct vlynq_mapping {
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u32 size;
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u32 offset;
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};
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enum vlynq_divisor {
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vlynq_div_auto = 0,
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vlynq_ldiv1,
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vlynq_ldiv2,
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vlynq_ldiv3,
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vlynq_ldiv4,
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vlynq_ldiv5,
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vlynq_ldiv6,
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vlynq_ldiv7,
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vlynq_ldiv8,
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vlynq_rdiv1,
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vlynq_rdiv2,
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vlynq_rdiv3,
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vlynq_rdiv4,
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vlynq_rdiv5,
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vlynq_rdiv6,
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vlynq_rdiv7,
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vlynq_rdiv8,
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vlynq_div_external
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};
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struct vlynq_device_id {
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u32 id;
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enum vlynq_divisor divisor;
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unsigned long driver_data;
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};
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struct vlynq_regs;
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struct vlynq_device {
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u32 id, dev_id;
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int local_irq;
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int remote_irq;
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enum vlynq_divisor divisor;
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u32 regs_start, regs_end;
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u32 mem_start, mem_end;
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u32 irq_start, irq_end;
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int irq;
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int enabled;
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struct vlynq_regs *local;
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struct vlynq_regs *remote;
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struct device dev;
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};
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struct vlynq_driver {
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char *name;
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struct vlynq_device_id *id_table;
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int (*probe)(struct vlynq_device *dev, struct vlynq_device_id *id);
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void (*remove)(struct vlynq_device *dev);
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struct device_driver driver;
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};
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struct plat_vlynq_ops {
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int (*on)(struct vlynq_device *dev);
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void (*off)(struct vlynq_device *dev);
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};
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static inline struct vlynq_driver *to_vlynq_driver(struct device_driver *drv)
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{
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return container_of(drv, struct vlynq_driver, driver);
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}
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static inline struct vlynq_device *to_vlynq_device(struct device *device)
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{
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return container_of(device, struct vlynq_device, dev);
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}
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extern struct bus_type vlynq_bus_type;
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extern int __vlynq_register_driver(struct vlynq_driver *driver,
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struct module *owner);
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static inline int vlynq_register_driver(struct vlynq_driver *driver)
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{
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return __vlynq_register_driver(driver, THIS_MODULE);
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}
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static inline void *vlynq_get_drvdata(struct vlynq_device *dev)
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{
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return dev_get_drvdata(&dev->dev);
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}
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static inline void vlynq_set_drvdata(struct vlynq_device *dev, void *data)
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{
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dev_set_drvdata(&dev->dev, data);
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}
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static inline u32 vlynq_mem_start(struct vlynq_device *dev)
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{
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return dev->mem_start;
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}
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static inline u32 vlynq_mem_end(struct vlynq_device *dev)
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{
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return dev->mem_end;
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}
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static inline u32 vlynq_mem_len(struct vlynq_device *dev)
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{
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return dev->mem_end - dev->mem_start + 1;
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}
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static inline int vlynq_virq_to_irq(struct vlynq_device *dev, int virq)
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{
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int irq = dev->irq_start + virq;
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if ((irq < dev->irq_start) || (irq > dev->irq_end))
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return -EINVAL;
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return irq;
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}
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static inline int vlynq_irq_to_virq(struct vlynq_device *dev, int irq)
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{
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if ((irq < dev->irq_start) || (irq > dev->irq_end))
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return -EINVAL;
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return irq - dev->irq_start;
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}
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extern void vlynq_unregister_driver(struct vlynq_driver *driver);
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extern int vlynq_enable_device(struct vlynq_device *dev);
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extern void vlynq_disable_device(struct vlynq_device *dev);
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extern int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset,
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struct vlynq_mapping *mapping);
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extern int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset,
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struct vlynq_mapping *mapping);
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extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq);
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extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq);
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#endif /* __VLYNQ_H__ */
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