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Diffstat (limited to 'include/asm-ppc/ocp.h')
| -rw-r--r-- | include/asm-ppc/ocp.h | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/include/asm-ppc/ocp.h b/include/asm-ppc/ocp.h deleted file mode 100644 index 3909a2eec28..00000000000 --- a/include/asm-ppc/ocp.h +++ /dev/null @@ -1,204 +0,0 @@ -/* - * ocp.h - * - * (c) Benjamin Herrenschmidt (benh@kernel.crashing.org) - * Mipsys - France - * - * Derived from work (c) Armin Kuster akuster@pacbell.net - * - * Additional support and port to 2.6 LDM/sysfs by - * Matt Porter <mporter@kernel.crashing.org> - * Copyright 2003-2004 MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * TODO: - Add get/put interface & fixup locking to provide same API for - * 2.4 and 2.5 - * - Rework PM callbacks - */ - -#ifdef __KERNEL__ -#ifndef __OCP_H__ -#define __OCP_H__ - -#include <linux/init.h> -#include <linux/list.h> -#include <linux/device.h> -#include <linux/rwsem.h> - -#include <asm/mmu.h> -#include <asm/ocp_ids.h> - -#ifdef CONFIG_PPC_OCP - -#define OCP_MAX_IRQS 7 -#define MAX_EMACS 4 -#define OCP_IRQ_NA -1 /* used when ocp device does not have an irq */ -#define OCP_IRQ_MUL -2 /* used for ocp devices with multiply irqs */ -#define OCP_NULL_TYPE -1 /* used to mark end of list */ -#define OCP_CPM_NA 0 /* No Clock or Power Management avaliable */ -#define OCP_PADDR_NA 0 /* No MMIO registers */ - -#define OCP_ANY_ID (~0) -#define OCP_ANY_INDEX -1 - -extern struct list_head ocp_devices; -extern struct rw_semaphore ocp_devices_sem; - -struct ocp_device_id { - unsigned int vendor, function; /* Vendor and function ID or OCP_ANY_ID */ - unsigned long driver_data; /* Data private to the driver */ -}; - - -/* - * Static definition of an OCP device. - * - * @vendor: Vendor code. It is _STRONGLY_ discouraged to use - * the vendor code as a way to match a unique device, - * though I kept that possibility open, you should - * really define different function codes for different - * device types - * @function: This is the function code for this device. - * @index: This index is used for mapping the Nth function of a - * given core. This is typically used for cross-driver - * matching, like looking for a given MAL or ZMII from - * an EMAC or for getting to the proper set of DCRs. - * Indices are no longer magically calculated based on - * structure ordering, they have to be actually coded - * into the ocp_def to avoid any possible confusion - * I _STRONGLY_ (again ? wow !) encourage anybody relying - * on index mapping to encode the "target" index in an - * associated structure pointed to by "additions", see - * how it's done for the EMAC driver. - * @paddr: Device physical address (may not mean anything...) - * @irq: Interrupt line for this device (TODO: think about making - * an array with this) - * @pm: Currently, contains the bitmask in CPMFR DCR for the device - * @additions: Optionally points to a function specific structure - * providing additional informations for a given device - * instance. It's currently used by the EMAC driver for MAL - * channel & ZMII port mapping among others. - * @show: Optionally points to a function specific structure - * providing a sysfs show routine for additions fields. - */ -struct ocp_def { - unsigned int vendor; - unsigned int function; - int index; - phys_addr_t paddr; - int irq; - unsigned long pm; - void *additions; - void (*show)(struct device *); -}; - - -/* Struct for a given device instance */ -struct ocp_device { - struct list_head link; - char name[80]; /* device name */ - struct ocp_def *def; /* device definition */ - void *drvdata; /* driver data for this device */ - struct ocp_driver *driver; - u32 current_state; /* Current operating state. In ACPI-speak, - this is D0-D3, D0 being fully functional, - and D3 being off. */ - struct device dev; -}; - -struct ocp_driver { - struct list_head node; - char *name; - const struct ocp_device_id *id_table; /* NULL if wants all devices */ - int (*probe) (struct ocp_device *dev); /* New device inserted */ - void (*remove) (struct ocp_device *dev); /* Device removed (NULL if not a hot-plug capable driver) */ - int (*suspend) (struct ocp_device *dev, pm_message_t state); /* Device suspended */ - int (*resume) (struct ocp_device *dev); /* Device woken up */ - struct device_driver driver; -}; - -#define to_ocp_dev(n) container_of(n, struct ocp_device, dev) -#define to_ocp_drv(n) container_of(n, struct ocp_driver, driver) - -/* Similar to the helpers above, these manipulate per-ocp_dev - * driver-specific data. Currently stored as ocp_dev::ocpdev, - * a void pointer, but it is not present on older kernels. - */ -static inline void * -ocp_get_drvdata(struct ocp_device *pdev) -{ - return pdev->drvdata; -} - -static inline void -ocp_set_drvdata(struct ocp_device *pdev, void *data) -{ - pdev->drvdata = data; -} - -#if defined (CONFIG_PM) -/* - * This is right for the IBM 405 and 440 but will need to be - * generalized if the OCP stuff gets used on other processors. - */ -static inline void -ocp_force_power_off(struct ocp_device *odev) -{ - mtdcr(DCRN_CPMFR, mfdcr(DCRN_CPMFR) | odev->def->pm); -} - -static inline void -ocp_force_power_on(struct ocp_device *odev) -{ - mtdcr(DCRN_CPMFR, mfdcr(DCRN_CPMFR) & ~odev->def->pm); -} -#else -#define ocp_force_power_off(x) (void)(x) -#define ocp_force_power_on(x) (void)(x) -#endif - -/* Register/Unregister an OCP driver */ -extern int ocp_register_driver(struct ocp_driver *drv); -extern void ocp_unregister_driver(struct ocp_driver *drv); - -/* Build list of devices */ -extern int ocp_early_init(void) __init; - -/* Find a device by index */ -extern struct ocp_device *ocp_find_device(unsigned int vendor, unsigned int function, int index); - -/* Get a def by index */ -extern struct ocp_def *ocp_get_one_device(unsigned int vendor, unsigned int function, int index); - -/* Add a device by index */ -extern int ocp_add_one_device(struct ocp_def *def); - -/* Remove a device by index */ -extern int ocp_remove_one_device(unsigned int vendor, unsigned int function, int index); - -/* Iterate over devices and execute a routine */ -extern void ocp_for_each_device(void(*callback)(struct ocp_device *, void *arg), void *arg); - -/* Sysfs support */ -#define OCP_SYSFS_ADDTL(type, format, name, field) \ -static ssize_t \ -show_##name##_##field(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct ocp_device *odev = to_ocp_dev(dev); \ - type *add = odev->def->additions; \ - \ - return sprintf(buf, format, add->field); \ -} \ -static DEVICE_ATTR(name##_##field, S_IRUGO, show_##name##_##field, NULL); - -#ifdef CONFIG_IBM_OCP -#include <asm/ibm_ocp.h> -#endif - -#endif /* CONFIG_PPC_OCP */ -#endif /* __OCP_H__ */ -#endif /* __KERNEL__ */ |