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Diffstat (limited to 'include/asm-powerpc/pmac_low_i2c.h')
| -rw-r--r-- | include/asm-powerpc/pmac_low_i2c.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/include/asm-powerpc/pmac_low_i2c.h b/include/asm-powerpc/pmac_low_i2c.h deleted file mode 100644 index 131011bd7e76..000000000000 --- a/include/asm-powerpc/pmac_low_i2c.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * include/asm-ppc/pmac_low_i2c.h - * - * Copyright (C) 2003 Ben. Herrenschmidt (benh@kernel.crashing.org) - * - * 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. - * - */ -#ifndef __PMAC_LOW_I2C_H__ -#define __PMAC_LOW_I2C_H__ -#ifdef __KERNEL__ - -/* i2c mode (based on the platform functions format) */ -enum { - pmac_i2c_mode_dumb = 1, - pmac_i2c_mode_std = 2, - pmac_i2c_mode_stdsub = 3, - pmac_i2c_mode_combined = 4, -}; - -/* RW bit in address */ -enum { - pmac_i2c_read = 0x01, - pmac_i2c_write = 0x00 -}; - -/* i2c bus type */ -enum { - pmac_i2c_bus_keywest = 0, - pmac_i2c_bus_pmu = 1, - pmac_i2c_bus_smu = 2, -}; - -/* i2c bus features */ -enum { - /* can_largesub : supports >1 byte subaddresses (SMU only) */ - pmac_i2c_can_largesub = 0x00000001u, - - /* multibus : device node holds multiple busses, bus number is - * encoded in bits 0xff00 of "reg" of a given device - */ - pmac_i2c_multibus = 0x00000002u, -}; - -/* i2c busses in the system */ -struct pmac_i2c_bus; -struct i2c_adapter; - -/* Init, called early during boot */ -extern int pmac_i2c_init(void); - -/* Lookup an i2c bus for a device-node. The node can be either the bus - * node itself or a device below it. In the case of a multibus, the bus - * node itself is the controller node, else, it's a child of the controller - * node - */ -extern struct pmac_i2c_bus *pmac_i2c_find_bus(struct device_node *node); - -/* Get the address for an i2c device. This strips the bus number if - * necessary. The 7 bits address is returned 1 bit right shifted so that the - * direction can be directly ored in - */ -extern u8 pmac_i2c_get_dev_addr(struct device_node *device); - -/* Get infos about a bus */ -extern struct device_node *pmac_i2c_get_controller(struct pmac_i2c_bus *bus); -extern struct device_node *pmac_i2c_get_bus_node(struct pmac_i2c_bus *bus); -extern int pmac_i2c_get_type(struct pmac_i2c_bus *bus); -extern int pmac_i2c_get_flags(struct pmac_i2c_bus *bus); -extern int pmac_i2c_get_channel(struct pmac_i2c_bus *bus); - -/* i2c layer adapter attach/detach */ -extern void pmac_i2c_attach_adapter(struct pmac_i2c_bus *bus, - struct i2c_adapter *adapter); -extern void pmac_i2c_detach_adapter(struct pmac_i2c_bus *bus, - struct i2c_adapter *adapter); -extern struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus); -extern struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter); - -/* March a device or bus with an i2c adapter structure, to be used by drivers - * to match device-tree nodes with i2c adapters during adapter discovery - * callbacks - */ -extern int pmac_i2c_match_adapter(struct device_node *dev, - struct i2c_adapter *adapter); - - -/* (legacy) Locking functions exposed to i2c-keywest */ -extern int pmac_low_i2c_lock(struct device_node *np); -extern int pmac_low_i2c_unlock(struct device_node *np); - -/* Access functions for platform code */ -extern int pmac_i2c_open(struct pmac_i2c_bus *bus, int polled); -extern void pmac_i2c_close(struct pmac_i2c_bus *bus); -extern int pmac_i2c_setmode(struct pmac_i2c_bus *bus, int mode); -extern int pmac_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize, - u32 subaddr, u8 *data, int len); - -/* Suspend/resume code called by via-pmu directly for now */ -extern void pmac_pfunc_i2c_suspend(void); -extern void pmac_pfunc_i2c_resume(void); - -#endif /* __KERNEL__ */ -#endif /* __PMAC_LOW_I2C_H__ */ |