diff options
| author | Paul Mackerras <paulus@samba.org> | 2005-10-20 20:53:39 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-10-20 20:53:39 +1000 |
| commit | ff065ddd96c233d27322de493fa023357939c888 (patch) | |
| tree | b60d8a362dea386d1cec91422fd18f92da244ffd /include/asm-powerpc/pmac_low_i2c.h | |
| parent | 0dd194d02d2584c34e06ddd26c7a7896a5fa1974 (diff) | |
| download | linux-ff065ddd96c233d27322de493fa023357939c888.tar.bz2 | |
powerpc: Merge various powermac-related header files.
Except for smu.h, which moved from asm-ppc64 to asm-powerpc, all
of these moved from asm-ppc to asm-powerpc. In each case the
asm-ppc64 version (if there was one) was just a single line
including the asm-ppc version.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/pmac_low_i2c.h')
| -rw-r--r-- | include/asm-powerpc/pmac_low_i2c.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/asm-powerpc/pmac_low_i2c.h b/include/asm-powerpc/pmac_low_i2c.h new file mode 100644 index 000000000000..809a5963d5e7 --- /dev/null +++ b/include/asm-powerpc/pmac_low_i2c.h @@ -0,0 +1,43 @@ +/* + * 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__ + +/* i2c mode (based on the platform functions format) */ +enum { + pmac_low_i2c_mode_dumb = 1, + pmac_low_i2c_mode_std = 2, + pmac_low_i2c_mode_stdsub = 3, + pmac_low_i2c_mode_combined = 4, +}; + +/* RW bit in address */ +enum { + pmac_low_i2c_read = 0x01, + pmac_low_i2c_write = 0x00 +}; + +/* Init, called early during boot */ +extern void pmac_init_low_i2c(void); + +/* Locking functions exposed to i2c-keywest */ +int pmac_low_i2c_lock(struct device_node *np); +int pmac_low_i2c_unlock(struct device_node *np); + +/* Access functions for platform code */ +int pmac_low_i2c_open(struct device_node *np, int channel); +int pmac_low_i2c_close(struct device_node *np); +int pmac_low_i2c_setmode(struct device_node *np, int mode); +int pmac_low_i2c_xfer(struct device_node *np, u8 addrdir, u8 subaddr, u8 *data, int len); + + +#endif /* __PMAC_LOW_I2C_H__ */ |