129 lines
4.0 KiB
C
129 lines
4.0 KiB
C
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/*
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* (c) 2010 STMicroelectronics Limited
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*
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* Author: David Mckay <david.mckay@st.com>
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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 version 2 as
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* published by the Free Software Foundation.
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*
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* Arch specific glue to join up the main stm pci driver in drivers/stm/
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* to the specific PCI arch code.
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*
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*/
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#ifndef __LINUX_STM_PCI_GLUE_H
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#define __LINUX_STM_PCI_GLUE_H
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#include <linux/pci.h>
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/*
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* This function takes the information filled in by the arch independant code
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* and hooks it up to the arch specific stuff. The arch independant code lives
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* in drivers/stm/pcie.c or drivers/stm/pci.c
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*
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* If this function needs to allocate memory it should use devm_kzalloc()
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*/
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enum stm_pci_type {STM_PCI_EMISS, STM_PCI_EXPRESS};
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int __devinit stm_pci_register_controller(struct platform_device *pdev,
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struct pci_ops *config_ops,
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enum stm_pci_type type);
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/*
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* Given a pci bus, return the corresponding platform device that created it
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* in the first place. Must be called with a bus that has as it's root
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* controller an interface registered via above mechanism
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*/
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struct platform_device *stm_pci_bus_to_platform(struct pci_bus *bus);
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/* Returns what type of bus this bus is ultimately connected to */
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enum stm_pci_type stm_pci_controller_type(struct pci_bus *bus);
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/* For a given pci express device, return the legacy interrupt number ie INTA.
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* Must be called on a device that has it's root bus registered via the above
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* function. Will return -EINVAL if called on a non-express bus which doesn't
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* have the concept of a legacy interrupt
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*/
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int stm_pci_legacy_irq(struct pci_dev *dev);
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#ifdef CONFIG_STM_PCI_EMISS
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/* IO functions for the EMISS PCI controller. Unfortunately
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* you have to actually run code to do an IO transaction,
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* rather than just dereference it, this complicates it
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* considerably
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*/
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u8 pci_emiss_inb(unsigned long port);
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u16 pci_emiss_inw(unsigned long port);
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u32 pci_emiss_inl(unsigned long port);
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u8 pci_emiss_inb_p(unsigned long port);
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u16 pci_emiss_inw_p(unsigned long port);
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u32 pci_emiss_inl_p(unsigned long port);
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void pci_emiss_insb(unsigned long port, void *dst, unsigned long count);
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void pci_emiss_insw(unsigned long port, void *dst, unsigned long count);
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void pci_emiss_insl(unsigned long port, void *dst, unsigned long count);
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void pci_emiss_outb(u8 val, unsigned long port);
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void pci_emiss_outw(u16 val, unsigned long port);
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void pci_emiss_outl(u32 val, unsigned long port);
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void pci_emiss_outb_p(u8 val, unsigned long port);
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void pci_emiss_outw_p(u16 val, unsigned long port);
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void pci_emiss_outl_p(u32 val, unsigned long port);
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void pci_emiss_outsb(unsigned long port, const void *src,
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unsigned long count);
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void pci_emiss_outsw(unsigned long port, const void *src,
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unsigned long count);
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void pci_emiss_outsl(unsigned long port, const void *src,
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unsigned long count);
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#endif
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#ifdef CONFIG_SUPERH
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/*
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* Defines macros to plug in the EMISS IO functions into the
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* SH4 machine vector
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*
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* We have to hook all the in/out functions as they cannot be memory
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* mapped with the emiss PCI IP
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*
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* Also, for PCI we use the generic iomap implementation, and so do
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* not need the ioport_map function, instead using the generic cookie
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* based implementation.
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*
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*/
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#ifdef CONFIG_STM_PCI_EMISS
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#define STM_PCI_IO_MACHINE_VEC \
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.mv_inb = pci_emiss_inb, \
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.mv_inw = pci_emiss_inw, \
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.mv_inl = pci_emiss_inl, \
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.mv_outb = pci_emiss_outb, \
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.mv_outw = pci_emiss_outw, \
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.mv_outl = pci_emiss_outl, \
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.mv_inb_p = pci_emiss_inb_p, \
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.mv_inw_p = pci_emiss_inw, \
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.mv_inl_p = pci_emiss_inl, \
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.mv_outb_p = pci_emiss_outb_p, \
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.mv_outw_p = pci_emiss_outw, \
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.mv_outl_p = pci_emiss_outl, \
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.mv_insb = pci_emiss_insb, \
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.mv_insw = pci_emiss_insw, \
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.mv_insl = pci_emiss_insl, \
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.mv_outsb = pci_emiss_outsb, \
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.mv_outsw = pci_emiss_outsw, \
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.mv_outsl = pci_emiss_outsl,
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#else
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#define STM_PCI_IO_MACHINE_VEC
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#endif /* CONFIG_STM_PCI_EMISS */
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#endif /* CONFIG_SUPERH */
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#endif /* __LINUX_STM_PCI_GLUE_H */
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