76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
/*
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* Copyright (C) 2010 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Computer, Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Computer, Inc.
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*/
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#ifndef __APPLE_IIC_H
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#define __APPLE_IIC_H
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#include <platform/gpio.h>
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#include <platform/soc/hwregbase.h>
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#define rMTXFIFO(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x00))
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#define rMRXFIFO(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x04))
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#define rMCNT(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x08))
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#define rXFSTA(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x0C))
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#define rSMSTA(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x14))
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#define rIMASK(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x18))
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#define rCTL(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x1C))
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#define rVERSION(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x28))
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#define rFILTER(_i) (*(volatile u_int32_t *)(IIC_BASE_ADDR + ((_i) * IIC_SPACING) + 0x38))
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#define kS5L8940XIICMTXFIFOWrite (0 << 10)
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#define kS5L8940XIICMTXFIFORead (1 << 10)
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#define kS5L8940XIICMTXFIFOStop (1 << 9)
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#define kS5L8940XIICMTXFIFOStart (1 << 8)
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#define kS5L8940XIICMTXFIFOData(_d) (((_d) & 0xff) << 0)
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#define kS5L8940XIICMRXFIFOEmpty (1 << 8)
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#define kS5L8940XIICMRXFIFOData(_v) (((_v) >> 0) & 0xff)
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#define kS5L8940XIICMCNTRxCnt(_v) (((_v) >> 8) & 0xff)
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#define kS5L8940XIICMCNTTxCnt(_v) (((_v) >> 0) & 0xff)
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#define kS5L8940XIICXFSTAmst(_v) (((_v) >> 28) & 0xf)
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#define kS5L8940XIIC_IDLE 0
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#define kS5L8940XIICXFSTAxfifo(_v) (((_v) >> 21) & 0x3)
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#define kS5L8940XIICXFSTAxcnt(_v) (((_v) >> 0) & 0xfffff)
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#define kS5L8940XIICSMSTAxip (1 << 28)
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#define kS5L8940XIICSMSTAxen (1 << 27)
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#define kS5L8940XIICSMSTAujf (1 << 26)
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#define kS5L8940XIICSMSTAjmd (1 << 25)
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#define kS5L8940XIICSMSTAjam (1 << 24)
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#define kS5L8940XIICSMSTAmto (1 << 23)
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#define kS5L8940XIICSMSTAmtn (1 << 21)
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#define kS5L8940XIICSMSTAmrf (1 << 20)
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#define kS5L8940XIICSMSTAmrne (1 << 19)
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#define kS5L8940XIICSMSTAmtr (1 << 18)
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#define kS5L8940XIICSMSTAmtf (1 << 17)
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#define kS5L8940XIICSMSTAmte (1 << 16)
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#define kS5L8940XIICSMSTAtom (1 << 6)
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#define kS5L8940XIICCTLMRR (1 << 10)
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#define kS5L8940XIICCTLMTR (1 << 9)
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#define kS5L8940XIICCTLUJM (1 << 8)
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#define kS5L8940XIICCTLCLK(_c) (((_c) & 0xff) << 0)
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#define kS5L8940XIICMIXDIV 4
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struct iic_device {
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int bus;
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int clk;
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int irq;
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bool busy;
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gpio_t gpio_scl;
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gpio_t gpio_sda;
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};
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#endif /* ! __APPLE_IIC_H */
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