[funini.com] -> [kei@sodan] -> Kernel Reading

root/include/asm-arm/plat-s3c/regs-iic.h

/* [<][>][^][v][top][bottom][index][help] */
/* arch/arm/mach-s3c2410/include/mach/regs-iic.h
 *
 * Copyright (c) 2004 Simtec Electronics <linux@simtec.co.uk>
 *              http://www.simtec.co.uk/products/SWLINUX/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * S3C2410 I2C Controller
*/

#ifndef __ASM_ARCH_REGS_IIC_H
#define __ASM_ARCH_REGS_IIC_H __FILE__

/* see s3c2410x user guide, v1.1, section 9 (p447) for more info */

#define S3C2410_IICREG(x) (x)

#define S3C2410_IICCON    S3C2410_IICREG(0x00)
#define S3C2410_IICSTAT   S3C2410_IICREG(0x04)
#define S3C2410_IICADD    S3C2410_IICREG(0x08)
#define S3C2410_IICDS     S3C2410_IICREG(0x0C)
#define S3C2440_IICLC     S3C2410_IICREG(0x10)

#define S3C2410_IICCON_ACKEN            (1<<7)
#define S3C2410_IICCON_TXDIV_16         (0<<6)
#define S3C2410_IICCON_TXDIV_512        (1<<6)
#define S3C2410_IICCON_IRQEN            (1<<5)
#define S3C2410_IICCON_IRQPEND          (1<<4)
#define S3C2410_IICCON_SCALE(x)         ((x)&15)
#define S3C2410_IICCON_SCALEMASK        (0xf)

#define S3C2410_IICSTAT_MASTER_RX       (2<<6)
#define S3C2410_IICSTAT_MASTER_TX       (3<<6)
#define S3C2410_IICSTAT_SLAVE_RX        (0<<6)
#define S3C2410_IICSTAT_SLAVE_TX        (1<<6)
#define S3C2410_IICSTAT_MODEMASK        (3<<6)

#define S3C2410_IICSTAT_START           (1<<5)
#define S3C2410_IICSTAT_BUSBUSY         (1<<5)
#define S3C2410_IICSTAT_TXRXEN          (1<<4)
#define S3C2410_IICSTAT_ARBITR          (1<<3)
#define S3C2410_IICSTAT_ASSLAVE         (1<<2)
#define S3C2410_IICSTAT_ADDR0           (1<<1)
#define S3C2410_IICSTAT_LASTBIT         (1<<0)

#define S3C2410_IICLC_SDA_DELAY0        (0 << 0)
#define S3C2410_IICLC_SDA_DELAY5        (1 << 0)
#define S3C2410_IICLC_SDA_DELAY10       (2 << 0)
#define S3C2410_IICLC_SDA_DELAY15       (3 << 0)
#define S3C2410_IICLC_SDA_DELAY_MASK    (3 << 0)

#define S3C2410_IICLC_FILTER_ON         (1<<2)

#endif /* __ASM_ARCH_REGS_IIC_H */

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading