|  | /****************************************************************************** | 
|  | * | 
|  | * Name:	ski2c.c | 
|  | * Project:	Gigabit Ethernet Adapters, TWSI-Module | 
|  | * Version:	$Revision: 1.59 $ | 
|  | * Date:	$Date: 2003/10/20 09:07:25 $ | 
|  | * Purpose:	Functions to access Voltage and Temperature Sensor | 
|  | * | 
|  | ******************************************************************************/ | 
|  |  | 
|  | /****************************************************************************** | 
|  | * | 
|  | *	(C)Copyright 1998-2002 SysKonnect. | 
|  | *	(C)Copyright 2002-2003 Marvell. | 
|  | * | 
|  | *	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. | 
|  | * | 
|  | *	The information in this file is provided "AS IS" without warranty. | 
|  | * | 
|  | ******************************************************************************/ | 
|  |  | 
|  | /* | 
|  | *	I2C Protocol | 
|  | */ | 
|  | #if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM)))) | 
|  | static const char SysKonnectFileId[] = | 
|  | "@(#) $Id: ski2c.c,v 1.59 2003/10/20 09:07:25 rschmidt Exp $ (C) Marvell. "; | 
|  | #endif | 
|  |  | 
|  | #include "h/skdrv1st.h"		/* Driver Specific Definitions */ | 
|  | #include "h/lm80.h" | 
|  | #include "h/skdrv2nd.h"		/* Adapter Control- and Driver specific Def. */ | 
|  |  | 
|  | #ifdef __C2MAN__ | 
|  | /* | 
|  | I2C protocol implementation. | 
|  |  | 
|  | General Description: | 
|  |  | 
|  | The I2C protocol is used for the temperature sensors and for | 
|  | the serial EEPROM which hold the configuration. | 
|  |  | 
|  | This file covers functions that allow to read write and do | 
|  | some bulk requests a specified I2C address. | 
|  |  | 
|  | The Genesis has 2 I2C buses. One for the EEPROM which holds | 
|  | the VPD Data and one for temperature and voltage sensor. | 
|  | The following picture shows the I2C buses, I2C devices and | 
|  | their control registers. | 
|  |  | 
|  | Note: The VPD functions are in skvpd.c | 
|  | . | 
|  | .	PCI Config I2C Bus for VPD Data: | 
|  | . | 
|  | .		      +------------+ | 
|  | .		      | VPD EEPROM | | 
|  | .		      +------------+ | 
|  | .			     | | 
|  | .			     | <-- I2C | 
|  | .			     | | 
|  | .		 +-----------+-----------+ | 
|  | .		 |			 | | 
|  | .	+-----------------+	+-----------------+ | 
|  | .	| PCI_VPD_ADR_REG |	| PCI_VPD_DAT_REG | | 
|  | .	+-----------------+	+-----------------+ | 
|  | . | 
|  | . | 
|  | .	I2C Bus for LM80 sensor: | 
|  | . | 
|  | .			+-----------------+ | 
|  | .			| Temperature and | | 
|  | .			| Voltage Sensor  | | 
|  | .			| 	LM80	  | | 
|  | .			+-----------------+ | 
|  | .				| | 
|  | .				| | 
|  | .			I2C --> | | 
|  | .				| | 
|  | .			     +----+ | 
|  | .	     +-------------->| OR |<--+ | 
|  | .	     |		     +----+   | | 
|  | .     +------+------+		      | | 
|  | .     |		    |		      | | 
|  | . +--------+	+--------+	+----------+ | 
|  | . | B2_I2C |	| B2_I2C |	|  B2_I2C  | | 
|  | . | _CTRL  |	| _DATA  |	|   _SW    | | 
|  | . +--------+	+--------+	+----------+ | 
|  | . | 
|  | The I2C bus may be driven by the B2_I2C_SW or by the B2_I2C_CTRL | 
|  | and B2_I2C_DATA registers. | 
|  | For driver software it is recommended to use the I2C control and | 
|  | data register, because I2C bus timing is done by the ASIC and | 
|  | an interrupt may be received when the I2C request is completed. | 
|  |  | 
|  | Clock Rate Timing:			MIN	MAX	generated by | 
|  | VPD EEPROM:			50 kHz	100 kHz		HW | 
|  | LM80 over I2C Ctrl/Data reg.	50 kHz	100 kHz		HW | 
|  | LM80 over B2_I2C_SW register	0	400 kHz		SW | 
|  |  | 
|  | Note:	The clock generated by the hardware is dependend on the | 
|  | PCI clock. If the PCI bus clock is 33 MHz, the I2C/VPD | 
|  | clock is 50 kHz. | 
|  | */ | 
|  | intro() | 
|  | {} | 
|  | #endif | 
|  |  | 
|  | #ifdef SK_DIAG | 
|  | /* | 
|  | * I2C Fast Mode timing values used by the LM80. | 
|  | * If new devices are added to the I2C bus the timing values have to be checked. | 
|  | */ | 
|  | #ifndef I2C_SLOW_TIMING | 
|  | #define	T_CLK_LOW			1300L	/* clock low time in ns */ | 
|  | #define	T_CLK_HIGH		 	 600L	/* clock high time in ns */ | 
|  | #define T_DATA_IN_SETUP		 100L	/* data in Set-up Time */ | 
|  | #define T_START_HOLD		 600L	/* start condition hold time */ | 
|  | #define T_START_SETUP		 600L	/* start condition Set-up time */ | 
|  | #define	T_STOP_SETUP		 600L	/* stop condition Set-up time */ | 
|  | #define T_BUS_IDLE			1300L	/* time the bus must free after Tx */ | 
|  | #define	T_CLK_2_DATA_OUT	 900L	/* max. clock low to data output valid */ | 
|  | #else	/* I2C_SLOW_TIMING */ | 
|  | /* I2C Standard Mode Timing */ | 
|  | #define	T_CLK_LOW			4700L	/* clock low time in ns */ | 
|  | #define	T_CLK_HIGH			4000L	/* clock high time in ns */ | 
|  | #define T_DATA_IN_SETUP		 250L	/* data in Set-up Time */ | 
|  | #define T_START_HOLD		4000L	/* start condition hold time */ | 
|  | #define T_START_SETUP		4700L	/* start condition Set-up time */ | 
|  | #define	T_STOP_SETUP		4000L	/* stop condition Set-up time */ | 
|  | #define T_BUS_IDLE			4700L	/* time the bus must free after Tx */ | 
|  | #endif	/* !I2C_SLOW_TIMING */ | 
|  |  | 
|  | #define NS2BCLK(x)	(((x)*125)/10000) | 
|  |  | 
|  | /* | 
|  | * I2C Wire Operations | 
|  | * | 
|  | * About I2C_CLK_LOW(): | 
|  | * | 
|  | * The Data Direction bit (I2C_DATA_DIR) has to be set to input when setting | 
|  | * clock to low, to prevent the ASIC and the I2C data client from driving the | 
|  | * serial data line simultaneously (ASIC: last bit of a byte = '1', I2C client | 
|  | * send an 'ACK'). See also Concentrator Bugreport No. 10192. | 
|  | */ | 
|  | #define I2C_DATA_HIGH(IoC)	SK_I2C_SET_BIT(IoC, I2C_DATA) | 
|  | #define	I2C_DATA_LOW(IoC)	SK_I2C_CLR_BIT(IoC, I2C_DATA) | 
|  | #define	I2C_DATA_OUT(IoC)	SK_I2C_SET_BIT(IoC, I2C_DATA_DIR) | 
|  | #define	I2C_DATA_IN(IoC)	SK_I2C_CLR_BIT(IoC, I2C_DATA_DIR | I2C_DATA) | 
|  | #define	I2C_CLK_HIGH(IoC)	SK_I2C_SET_BIT(IoC, I2C_CLK) | 
|  | #define	I2C_CLK_LOW(IoC)	SK_I2C_CLR_BIT(IoC, I2C_CLK | I2C_DATA_DIR) | 
|  | #define	I2C_START_COND(IoC)	SK_I2C_CLR_BIT(IoC, I2C_CLK) | 
|  |  | 
|  | #define NS2CLKT(x)	((x*125L)/10000) | 
|  |  | 
|  | /*--------------- I2C Interface Register Functions --------------- */ | 
|  |  | 
|  | /* | 
|  | * sending one bit | 
|  | */ | 
|  | void SkI2cSndBit( | 
|  | SK_IOC	IoC,	/* I/O Context */ | 
|  | SK_U8	Bit)	/* Bit to send */ | 
|  | { | 
|  | I2C_DATA_OUT(IoC); | 
|  | if (Bit) { | 
|  | I2C_DATA_HIGH(IoC); | 
|  | } | 
|  | else { | 
|  | I2C_DATA_LOW(IoC); | 
|  | } | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_DATA_IN_SETUP)); | 
|  | I2C_CLK_HIGH(IoC); | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_CLK_HIGH)); | 
|  | I2C_CLK_LOW(IoC); | 
|  | }	/* SkI2cSndBit*/ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Signal a start to the I2C Bus. | 
|  | * | 
|  | * A start is signaled when data goes to low in a high clock cycle. | 
|  | * | 
|  | * Ends with Clock Low. | 
|  | * | 
|  | * Status: not tested | 
|  | */ | 
|  | void SkI2cStart( | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | /* Init data and Clock to output lines */ | 
|  | /* Set Data high */ | 
|  | I2C_DATA_OUT(IoC); | 
|  | I2C_DATA_HIGH(IoC); | 
|  | /* Set Clock high */ | 
|  | I2C_CLK_HIGH(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_START_SETUP)); | 
|  |  | 
|  | /* Set Data Low */ | 
|  | I2C_DATA_LOW(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_START_HOLD)); | 
|  |  | 
|  | /* Clock low without Data to Input */ | 
|  | I2C_START_COND(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_CLK_LOW)); | 
|  | }	/* SkI2cStart */ | 
|  |  | 
|  |  | 
|  | void SkI2cStop( | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | /* Init data and Clock to output lines */ | 
|  | /* Set Data low */ | 
|  | I2C_DATA_OUT(IoC); | 
|  | I2C_DATA_LOW(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_CLK_2_DATA_OUT)); | 
|  |  | 
|  | /* Set Clock high */ | 
|  | I2C_CLK_HIGH(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_STOP_SETUP)); | 
|  |  | 
|  | /* | 
|  | * Set Data High:	Do it by setting the Data Line to Input. | 
|  | *			Because of a pull up resistor the Data Line | 
|  | *			floods to high. | 
|  | */ | 
|  | I2C_DATA_IN(IoC); | 
|  |  | 
|  | /* | 
|  | *	When I2C activity is stopped | 
|  | *	 o	DATA should be set to input and | 
|  | *	 o	CLOCK should be set to high! | 
|  | */ | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_BUS_IDLE)); | 
|  | }	/* SkI2cStop */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Receive just one bit via the I2C bus. | 
|  | * | 
|  | * Note:	Clock must be set to LOW before calling this function. | 
|  | * | 
|  | * Returns The received bit. | 
|  | */ | 
|  | int SkI2cRcvBit( | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | int	Bit; | 
|  | SK_U8	I2cSwCtrl; | 
|  |  | 
|  | /* Init data as input line */ | 
|  | I2C_DATA_IN(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_CLK_2_DATA_OUT)); | 
|  |  | 
|  | I2C_CLK_HIGH(IoC); | 
|  |  | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_CLK_HIGH)); | 
|  |  | 
|  | SK_I2C_GET_SW(IoC, &I2cSwCtrl); | 
|  |  | 
|  | Bit = (I2cSwCtrl & I2C_DATA) ? 1 : 0; | 
|  |  | 
|  | I2C_CLK_LOW(IoC); | 
|  | SkDgWaitTime(IoC, NS2BCLK(T_CLK_LOW-T_CLK_2_DATA_OUT)); | 
|  |  | 
|  | return(Bit); | 
|  | }	/* SkI2cRcvBit */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Receive an ACK. | 
|  | * | 
|  | * returns	0 If acknowledged | 
|  | *		1 in case of an error | 
|  | */ | 
|  | int SkI2cRcvAck( | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | /* | 
|  | * Received bit must be zero. | 
|  | */ | 
|  | return(SkI2cRcvBit(IoC) != 0); | 
|  | }	/* SkI2cRcvAck */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Send an NACK. | 
|  | */ | 
|  | void SkI2cSndNAck( | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | /* | 
|  | * Received bit must be zero. | 
|  | */ | 
|  | SkI2cSndBit(IoC, 1); | 
|  | }	/* SkI2cSndNAck */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Send an ACK. | 
|  | */ | 
|  | void SkI2cSndAck( | 
|  | SK_IOC IoC)	/* I/O Context */ | 
|  | { | 
|  | /* | 
|  | * Received bit must be zero. | 
|  | */ | 
|  | SkI2cSndBit(IoC, 0); | 
|  | }	/* SkI2cSndAck */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Send one byte to the I2C device and wait for ACK. | 
|  | * | 
|  | * Return acknowleged status. | 
|  | */ | 
|  | int SkI2cSndByte( | 
|  | SK_IOC	IoC,	/* I/O Context */ | 
|  | int		Byte)	/* byte to send */ | 
|  | { | 
|  | int	i; | 
|  |  | 
|  | for (i = 0; i < 8; i++) { | 
|  | if (Byte & (1<<(7-i))) { | 
|  | SkI2cSndBit(IoC, 1); | 
|  | } | 
|  | else { | 
|  | SkI2cSndBit(IoC, 0); | 
|  | } | 
|  | } | 
|  |  | 
|  | return(SkI2cRcvAck(IoC)); | 
|  | }	/* SkI2cSndByte */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Receive one byte and ack it. | 
|  | * | 
|  | * Return byte. | 
|  | */ | 
|  | int SkI2cRcvByte( | 
|  | SK_IOC	IoC,	/* I/O Context */ | 
|  | int		Last)	/* Last Byte Flag */ | 
|  | { | 
|  | int	i; | 
|  | int	Byte = 0; | 
|  |  | 
|  | for (i = 0; i < 8; i++) { | 
|  | Byte <<= 1; | 
|  | Byte |= SkI2cRcvBit(IoC); | 
|  | } | 
|  |  | 
|  | if (Last) { | 
|  | SkI2cSndNAck(IoC); | 
|  | } | 
|  | else { | 
|  | SkI2cSndAck(IoC); | 
|  | } | 
|  |  | 
|  | return(Byte); | 
|  | }	/* SkI2cRcvByte */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Start dialog and send device address | 
|  | * | 
|  | * Return 0 if acknowleged, 1 in case of an error | 
|  | */ | 
|  | int	SkI2cSndDev( | 
|  | SK_IOC	IoC,	/* I/O Context */ | 
|  | int		Addr,	/* Device Address */ | 
|  | int		Rw)		/* Read / Write Flag */ | 
|  | { | 
|  | SkI2cStart(IoC); | 
|  | Rw = ~Rw; | 
|  | Rw &= I2C_WRITE; | 
|  | return(SkI2cSndByte(IoC, (Addr<<1) | Rw)); | 
|  | }	/* SkI2cSndDev */ | 
|  |  | 
|  | #endif /* SK_DIAG */ | 
|  |  | 
|  | /*----------------- I2C CTRL Register Functions ----------*/ | 
|  |  | 
|  | /* | 
|  | * waits for a completion of an I2C transfer | 
|  | * | 
|  | * returns	0:	success, transfer completes | 
|  | *			1:	error,	 transfer does not complete, I2C transfer | 
|  | *						 killed, wait loop terminated. | 
|  | */ | 
|  | static int	SkI2cWait( | 
|  | SK_AC	*pAC,	/* Adapter Context */ | 
|  | SK_IOC	IoC,	/* I/O Context */ | 
|  | int		Event)	/* complete event to wait for (I2C_READ or I2C_WRITE) */ | 
|  | { | 
|  | SK_U64	StartTime; | 
|  | SK_U64	CurrentTime; | 
|  | SK_U32	I2cCtrl; | 
|  |  | 
|  | StartTime = SkOsGetTime(pAC); | 
|  |  | 
|  | do { | 
|  | CurrentTime = SkOsGetTime(pAC); | 
|  |  | 
|  | if (CurrentTime - StartTime > SK_TICKS_PER_SEC / 8) { | 
|  |  | 
|  | SK_I2C_STOP(IoC); | 
|  | #ifndef SK_DIAG | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E002, SKERR_I2C_E002MSG); | 
|  | #endif /* !SK_DIAG */ | 
|  | return(1); | 
|  | } | 
|  |  | 
|  | SK_I2C_GET_CTL(IoC, &I2cCtrl); | 
|  |  | 
|  | #ifdef xYUKON_DBG | 
|  | printf("StartTime=%lu, CurrentTime=%lu\n", | 
|  | StartTime, CurrentTime); | 
|  | if (kbhit()) { | 
|  | return(1); | 
|  | } | 
|  | #endif /* YUKON_DBG */ | 
|  |  | 
|  | } while ((I2cCtrl & I2C_FLAG) == (SK_U32)Event << 31); | 
|  |  | 
|  | return(0); | 
|  | }	/* SkI2cWait */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * waits for a completion of an I2C transfer | 
|  | * | 
|  | * Returns | 
|  | *	Nothing | 
|  | */ | 
|  | void SkI2cWaitIrq( | 
|  | SK_AC	*pAC,	/* Adapter Context */ | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | SK_SENSOR	*pSen; | 
|  | SK_U64		StartTime; | 
|  | SK_U32		IrqSrc; | 
|  |  | 
|  | pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens]; | 
|  |  | 
|  | if (pSen->SenState == SK_SEN_IDLE) { | 
|  | return; | 
|  | } | 
|  |  | 
|  | StartTime = SkOsGetTime(pAC); | 
|  |  | 
|  | do { | 
|  | if (SkOsGetTime(pAC) - StartTime > SK_TICKS_PER_SEC / 8) { | 
|  |  | 
|  | SK_I2C_STOP(IoC); | 
|  | #ifndef SK_DIAG | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E016, SKERR_I2C_E016MSG); | 
|  | #endif /* !SK_DIAG */ | 
|  | return; | 
|  | } | 
|  |  | 
|  | SK_IN32(IoC, B0_ISRC, &IrqSrc); | 
|  |  | 
|  | } while ((IrqSrc & IS_I2C_READY) == 0); | 
|  |  | 
|  | pSen->SenState = SK_SEN_IDLE; | 
|  | return; | 
|  | }	/* SkI2cWaitIrq */ | 
|  |  | 
|  | /* | 
|  | * writes a single byte or 4 bytes into the I2C device | 
|  | * | 
|  | * returns	0:	success | 
|  | *			1:	error | 
|  | */ | 
|  | static int SkI2cWrite( | 
|  | SK_AC	*pAC,		/* Adapter Context */ | 
|  | SK_IOC	IoC,		/* I/O Context */ | 
|  | SK_U32	I2cData,	/* I2C Data to write */ | 
|  | int		I2cDev,		/* I2C Device Address */ | 
|  | int		I2cDevSize, /* I2C Device Size (e.g. I2C_025K_DEV or I2C_2K_DEV) */ | 
|  | int		I2cReg,		/* I2C Device Register Address */ | 
|  | int		I2cBurst)	/* I2C Burst Flag */ | 
|  | { | 
|  | SK_OUT32(IoC, B2_I2C_DATA, I2cData); | 
|  |  | 
|  | SK_I2C_CTL(IoC, I2C_WRITE, I2cDev, I2cDevSize, I2cReg, I2cBurst); | 
|  |  | 
|  | return(SkI2cWait(pAC, IoC, I2C_WRITE)); | 
|  | }	/* SkI2cWrite*/ | 
|  |  | 
|  |  | 
|  | #ifdef	SK_DIAG | 
|  | /* | 
|  | * reads a single byte or 4 bytes from the I2C device | 
|  | * | 
|  | * returns	the word read | 
|  | */ | 
|  | SK_U32 SkI2cRead( | 
|  | SK_AC	*pAC,		/* Adapter Context */ | 
|  | SK_IOC	IoC,		/* I/O Context */ | 
|  | int		I2cDev,		/* I2C Device Address */ | 
|  | int		I2cDevSize, /* I2C Device Size (e.g. I2C_025K_DEV or I2C_2K_DEV) */ | 
|  | int		I2cReg,		/* I2C Device Register Address */ | 
|  | int		I2cBurst)	/* I2C Burst Flag */ | 
|  | { | 
|  | SK_U32	Data; | 
|  |  | 
|  | SK_OUT32(IoC, B2_I2C_DATA, 0); | 
|  | SK_I2C_CTL(IoC, I2C_READ, I2cDev, I2cDevSize, I2cReg, I2cBurst); | 
|  |  | 
|  | if (SkI2cWait(pAC, IoC, I2C_READ) != 0) { | 
|  | w_print("%s\n", SKERR_I2C_E002MSG); | 
|  | } | 
|  |  | 
|  | SK_IN32(IoC, B2_I2C_DATA, &Data); | 
|  |  | 
|  | return(Data); | 
|  | }	/* SkI2cRead */ | 
|  | #endif /* SK_DIAG */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * read a sensor's value | 
|  | * | 
|  | * This function reads a sensor's value from the I2C sensor chip. The sensor | 
|  | * is defined by its index into the sensors database in the struct pAC points | 
|  | * to. | 
|  | * Returns | 
|  | *		1 if the read is completed | 
|  | *		0 if the read must be continued (I2C Bus still allocated) | 
|  | */ | 
|  | static int	SkI2cReadSensor( | 
|  | SK_AC		*pAC,	/* Adapter Context */ | 
|  | SK_IOC		IoC,	/* I/O Context */ | 
|  | SK_SENSOR	*pSen)	/* Sensor to be read */ | 
|  | { | 
|  | if (pSen->SenRead != NULL) { | 
|  | return((*pSen->SenRead)(pAC, IoC, pSen)); | 
|  | } | 
|  | else { | 
|  | return(0); /* no success */ | 
|  | } | 
|  | }	/* SkI2cReadSensor */ | 
|  |  | 
|  | /* | 
|  | * Do the Init state 0 initialization | 
|  | */ | 
|  | static int SkI2cInit0( | 
|  | SK_AC	*pAC)	/* Adapter Context */ | 
|  | { | 
|  | int	i; | 
|  |  | 
|  | /* Begin with first sensor */ | 
|  | pAC->I2c.CurrSens = 0; | 
|  |  | 
|  | /* Begin with timeout control for state machine */ | 
|  | pAC->I2c.TimerMode = SK_TIMER_WATCH_SM; | 
|  |  | 
|  | /* Set sensor number to zero */ | 
|  | pAC->I2c.MaxSens = 0; | 
|  |  | 
|  | #ifndef SK_DIAG | 
|  | /* Initialize Number of Dummy Reads */ | 
|  | pAC->I2c.DummyReads = SK_MAX_SENSORS; | 
|  | #endif | 
|  |  | 
|  | for (i = 0; i < SK_MAX_SENSORS; i++) { | 
|  | pAC->I2c.SenTable[i].SenDesc = "unknown"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_UNKNOWN; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = 0; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = 0; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = 0; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = 0; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_FAN2_IN; | 
|  | pAC->I2c.SenTable[i].SenInit = SK_SEN_DYN_INIT_NONE; | 
|  | pAC->I2c.SenTable[i].SenValue = 0; | 
|  | pAC->I2c.SenTable[i].SenErrFlag = SK_SEN_ERR_NOT_PRESENT; | 
|  | pAC->I2c.SenTable[i].SenErrCts = 0; | 
|  | pAC->I2c.SenTable[i].SenBegErrTS = 0; | 
|  | pAC->I2c.SenTable[i].SenState = SK_SEN_IDLE; | 
|  | pAC->I2c.SenTable[i].SenRead = NULL; | 
|  | pAC->I2c.SenTable[i].SenDev = 0; | 
|  | } | 
|  |  | 
|  | /* Now we are "INIT data"ed */ | 
|  | pAC->I2c.InitLevel = SK_INIT_DATA; | 
|  | return(0); | 
|  | }	/* SkI2cInit0*/ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Do the init state 1 initialization | 
|  | * | 
|  | * initialize the following register of the LM80: | 
|  | * Configuration register: | 
|  | * - START, noINT, activeLOW, noINT#Clear, noRESET, noCI, noGPO#, noINIT | 
|  | * | 
|  | * Interrupt Mask Register 1: | 
|  | * - all interrupts are Disabled (0xff) | 
|  | * | 
|  | * Interrupt Mask Register 2: | 
|  | * - all interrupts are Disabled (0xff) Interrupt modi doesn't matter. | 
|  | * | 
|  | * Fan Divisor/RST_OUT register: | 
|  | * - Divisors set to 1 (bits 00), all others 0s. | 
|  | * | 
|  | * OS# Configuration/Temperature resolution Register: | 
|  | * - all 0s | 
|  | * | 
|  | */ | 
|  | static int SkI2cInit1( | 
|  | SK_AC	*pAC,	/* Adapter Context */ | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | int i; | 
|  | SK_U8 I2cSwCtrl; | 
|  | SK_GEPORT *pPrt;	/* GIni Port struct pointer */ | 
|  |  | 
|  | if (pAC->I2c.InitLevel != SK_INIT_DATA) { | 
|  | /* ReInit not needed in I2C module */ | 
|  | return(0); | 
|  | } | 
|  |  | 
|  | /* Set the Direction of I2C-Data Pin to IN */ | 
|  | SK_I2C_CLR_BIT(IoC, I2C_DATA_DIR | I2C_DATA); | 
|  | /* Check for 32-Bit Yukon with Low at I2C-Data Pin */ | 
|  | SK_I2C_GET_SW(IoC, &I2cSwCtrl); | 
|  |  | 
|  | if ((I2cSwCtrl & I2C_DATA) == 0) { | 
|  | /* this is a 32-Bit board */ | 
|  | pAC->GIni.GIYukon32Bit = SK_TRUE; | 
|  | return(0); | 
|  | } | 
|  |  | 
|  | /* Check for 64 Bit Yukon without sensors */ | 
|  | if (SkI2cWrite(pAC, IoC, 0, LM80_ADDR, I2C_025K_DEV, LM80_CFG, 0) != 0) { | 
|  | return(0); | 
|  | } | 
|  |  | 
|  | (void)SkI2cWrite(pAC, IoC, 0xffUL, LM80_ADDR, I2C_025K_DEV, LM80_IMSK_1, 0); | 
|  |  | 
|  | (void)SkI2cWrite(pAC, IoC, 0xffUL, LM80_ADDR, I2C_025K_DEV, LM80_IMSK_2, 0); | 
|  |  | 
|  | (void)SkI2cWrite(pAC, IoC, 0, LM80_ADDR, I2C_025K_DEV, LM80_FAN_CTRL, 0); | 
|  |  | 
|  | (void)SkI2cWrite(pAC, IoC, 0, LM80_ADDR, I2C_025K_DEV, LM80_TEMP_CTRL, 0); | 
|  |  | 
|  | (void)SkI2cWrite(pAC, IoC, (SK_U32)LM80_CFG_START, LM80_ADDR, I2C_025K_DEV, | 
|  | LM80_CFG, 0); | 
|  |  | 
|  | /* | 
|  | * MaxSens has to be updated here, because PhyType is not | 
|  | * set when performing Init Level 0 | 
|  | */ | 
|  | pAC->I2c.MaxSens = 5; | 
|  |  | 
|  | pPrt = &pAC->GIni.GP[0]; | 
|  |  | 
|  | if (pAC->GIni.GIGenesis) { | 
|  | if (pPrt->PhyType == SK_PHY_BCOM) { | 
|  | if (pAC->GIni.GIMacsFound == 1) { | 
|  | pAC->I2c.MaxSens += 1; | 
|  | } | 
|  | else { | 
|  | pAC->I2c.MaxSens += 3; | 
|  | } | 
|  | } | 
|  | } | 
|  | else { | 
|  | pAC->I2c.MaxSens += 3; | 
|  | } | 
|  |  | 
|  | for (i = 0; i < pAC->I2c.MaxSens; i++) { | 
|  | switch (i) { | 
|  | case 0: | 
|  | pAC->I2c.SenTable[i].SenDesc = "Temperature"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_TEMP; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_TEMP_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_TEMP_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_TEMP_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_TEMP_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_TEMP_IN; | 
|  | break; | 
|  | case 1: | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PCI"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PCI_5V_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PCI_5V_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PCI_5V_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PCI_5V_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT0_IN; | 
|  | break; | 
|  | case 2: | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PCI-IO"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PCI_IO_5V_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PCI_IO_5V_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PCI_IO_3V3_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PCI_IO_3V3_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT1_IN; | 
|  | pAC->I2c.SenTable[i].SenInit = SK_SEN_DYN_INIT_PCI_IO; | 
|  | break; | 
|  | case 3: | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage ASIC"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_VDD_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_VDD_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_VDD_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_VDD_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT2_IN; | 
|  | break; | 
|  | case 4: | 
|  | if (pAC->GIni.GIGenesis) { | 
|  | if (pPrt->PhyType == SK_PHY_BCOM) { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PHY A PLL"; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PLL_3V3_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PLL_3V3_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PLL_3V3_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PLL_3V3_LOW_ERR; | 
|  | } | 
|  | else { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PMA"; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PLL_3V3_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PLL_3V3_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PLL_3V3_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PLL_3V3_LOW_ERR; | 
|  | } | 
|  | } | 
|  | else { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage VAUX"; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_VAUX_3V3_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_VAUX_3V3_HIGH_WARN; | 
|  | if (pAC->GIni.GIVauxAvail) { | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_VAUX_3V3_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_VAUX_3V3_LOW_ERR; | 
|  | } | 
|  | else { | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_VAUX_0V_WARN_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_VAUX_0V_WARN_ERR; | 
|  | } | 
|  | } | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT3_IN; | 
|  | break; | 
|  | case 5: | 
|  | if (pAC->GIni.GIGenesis) { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PHY 2V5"; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PHY_2V5_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PHY_2V5_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PHY_2V5_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PHY_2V5_LOW_ERR; | 
|  | } | 
|  | else { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage Core 1V5"; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_CORE_1V5_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_CORE_1V5_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_CORE_1V5_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_CORE_1V5_LOW_ERR; | 
|  | } | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT4_IN; | 
|  | break; | 
|  | case 6: | 
|  | if (pAC->GIni.GIGenesis) { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PHY B PLL"; | 
|  | } | 
|  | else { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PHY 3V3"; | 
|  | } | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PLL_3V3_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PLL_3V3_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PLL_3V3_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PLL_3V3_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT5_IN; | 
|  | break; | 
|  | case 7: | 
|  | if (pAC->GIni.GIGenesis) { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Speed Fan"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_FAN; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_FAN_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_FAN_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_FAN_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_FAN_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_FAN2_IN; | 
|  | } | 
|  | else { | 
|  | pAC->I2c.SenTable[i].SenDesc = "Voltage PHY 2V5"; | 
|  | pAC->I2c.SenTable[i].SenType = SK_SEN_VOLT; | 
|  | pAC->I2c.SenTable[i].SenThreErrHigh = SK_SEN_PHY_2V5_HIGH_ERR; | 
|  | pAC->I2c.SenTable[i].SenThreWarnHigh = SK_SEN_PHY_2V5_HIGH_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreWarnLow = SK_SEN_PHY_2V5_LOW_WARN; | 
|  | pAC->I2c.SenTable[i].SenThreErrLow = SK_SEN_PHY_2V5_LOW_ERR; | 
|  | pAC->I2c.SenTable[i].SenReg = LM80_VT6_IN; | 
|  | } | 
|  | break; | 
|  | default: | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_INIT | SK_ERRCL_SW, | 
|  | SKERR_I2C_E001, SKERR_I2C_E001MSG); | 
|  | break; | 
|  | } | 
|  |  | 
|  | pAC->I2c.SenTable[i].SenValue = 0; | 
|  | pAC->I2c.SenTable[i].SenErrFlag = SK_SEN_ERR_OK; | 
|  | pAC->I2c.SenTable[i].SenErrCts = 0; | 
|  | pAC->I2c.SenTable[i].SenBegErrTS = 0; | 
|  | pAC->I2c.SenTable[i].SenState = SK_SEN_IDLE; | 
|  | pAC->I2c.SenTable[i].SenRead = SkLm80ReadSensor; | 
|  | pAC->I2c.SenTable[i].SenDev = LM80_ADDR; | 
|  | } | 
|  |  | 
|  | #ifndef SK_DIAG | 
|  | pAC->I2c.DummyReads = pAC->I2c.MaxSens; | 
|  | #endif /* !SK_DIAG */ | 
|  |  | 
|  | /* Clear I2C IRQ */ | 
|  | SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ); | 
|  |  | 
|  | /* Now we are I/O initialized */ | 
|  | pAC->I2c.InitLevel = SK_INIT_IO; | 
|  | return(0); | 
|  | }	/* SkI2cInit1 */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Init level 2: Start first sensor read. | 
|  | */ | 
|  | static int SkI2cInit2( | 
|  | SK_AC	*pAC,	/* Adapter Context */ | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | int		ReadComplete; | 
|  | SK_SENSOR	*pSen; | 
|  |  | 
|  | if (pAC->I2c.InitLevel != SK_INIT_IO) { | 
|  | /* ReInit not needed in I2C module */ | 
|  | /* Init0 and Init2 not permitted */ | 
|  | return(0); | 
|  | } | 
|  |  | 
|  | pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens]; | 
|  | ReadComplete = SkI2cReadSensor(pAC, IoC, pSen); | 
|  |  | 
|  | if (ReadComplete) { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_INIT, SKERR_I2C_E008, SKERR_I2C_E008MSG); | 
|  | } | 
|  |  | 
|  | /* Now we are correctly initialized */ | 
|  | pAC->I2c.InitLevel = SK_INIT_RUN; | 
|  |  | 
|  | return(0); | 
|  | }	/* SkI2cInit2*/ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Initialize I2C devices | 
|  | * | 
|  | * Get the first voltage value and discard it. | 
|  | * Go into temperature read mode. A default pointer is not set. | 
|  | * | 
|  | * The things to be done depend on the init level in the parameter list: | 
|  | * Level 0: | 
|  | *	Initialize only the data structures. Do NOT access hardware. | 
|  | * Level 1: | 
|  | *	Initialize hardware through SK_IN / SK_OUT commands. Do NOT use interrupts. | 
|  | * Level 2: | 
|  | *	Everything is possible. Interrupts may be used from now on. | 
|  | * | 
|  | * return: | 
|  | *	0 = success | 
|  | *	other = error. | 
|  | */ | 
|  | int	SkI2cInit( | 
|  | SK_AC	*pAC,	/* Adapter Context */ | 
|  | SK_IOC	IoC,	/* I/O Context needed in levels 1 and 2 */ | 
|  | int		Level)	/* Init Level */ | 
|  | { | 
|  |  | 
|  | switch (Level) { | 
|  | case SK_INIT_DATA: | 
|  | return(SkI2cInit0(pAC)); | 
|  | case SK_INIT_IO: | 
|  | return(SkI2cInit1(pAC, IoC)); | 
|  | case SK_INIT_RUN: | 
|  | return(SkI2cInit2(pAC, IoC)); | 
|  | default: | 
|  | break; | 
|  | } | 
|  |  | 
|  | return(0); | 
|  | }	/* SkI2cInit */ | 
|  |  | 
|  |  | 
|  | #ifndef SK_DIAG | 
|  |  | 
|  | /* | 
|  | * Interrupt service function for the I2C Interface | 
|  | * | 
|  | * Clears the Interrupt source | 
|  | * | 
|  | * Reads the register and check it for sending a trap. | 
|  | * | 
|  | * Starts the timer if necessary. | 
|  | */ | 
|  | void SkI2cIsr( | 
|  | SK_AC	*pAC,	/* Adapter Context */ | 
|  | SK_IOC	IoC)	/* I/O Context */ | 
|  | { | 
|  | SK_EVPARA	Para; | 
|  |  | 
|  | /* Clear I2C IRQ */ | 
|  | SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ); | 
|  |  | 
|  | Para.Para64 = 0; | 
|  | SkEventQueue(pAC, SKGE_I2C, SK_I2CEV_IRQ, Para); | 
|  | }	/* SkI2cIsr */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Check this sensors Value against the threshold and send events. | 
|  | */ | 
|  | static void SkI2cCheckSensor( | 
|  | SK_AC		*pAC,	/* Adapter Context */ | 
|  | SK_SENSOR	*pSen) | 
|  | { | 
|  | SK_EVPARA	ParaLocal; | 
|  | SK_BOOL		TooHigh;	/* Is sensor too high? */ | 
|  | SK_BOOL		TooLow;		/* Is sensor too low? */ | 
|  | SK_U64		CurrTime;	/* Current Time */ | 
|  | SK_BOOL		DoTrapSend;	/* We need to send a trap */ | 
|  | SK_BOOL		DoErrLog;	/* We need to log the error */ | 
|  | SK_BOOL		IsError;	/* We need to log the error */ | 
|  |  | 
|  | /* Check Dummy Reads first */ | 
|  | if (pAC->I2c.DummyReads > 0) { | 
|  | pAC->I2c.DummyReads--; | 
|  | return; | 
|  | } | 
|  |  | 
|  | /* Get the current time */ | 
|  | CurrTime = SkOsGetTime(pAC); | 
|  |  | 
|  | /* Set para to the most useful setting: The current sensor. */ | 
|  | ParaLocal.Para64 = (SK_U64)pAC->I2c.CurrSens; | 
|  |  | 
|  | /* Check the Value against the thresholds. First: Error Thresholds */ | 
|  | TooHigh = (pSen->SenValue > pSen->SenThreErrHigh); | 
|  | TooLow = (pSen->SenValue < pSen->SenThreErrLow); | 
|  |  | 
|  | IsError = SK_FALSE; | 
|  | if (TooHigh || TooLow) { | 
|  | /* Error condition is satisfied */ | 
|  | DoTrapSend = SK_TRUE; | 
|  | DoErrLog = SK_TRUE; | 
|  |  | 
|  | /* Now error condition is satisfied */ | 
|  | IsError = SK_TRUE; | 
|  |  | 
|  | if (pSen->SenErrFlag == SK_SEN_ERR_ERR) { | 
|  | /* This state is the former one */ | 
|  |  | 
|  | /* So check first whether we have to send a trap */ | 
|  | if (pSen->SenLastErrTrapTS + SK_SEN_ERR_TR_HOLD > | 
|  | CurrTime) { | 
|  | /* | 
|  | * Do NOT send the Trap. The hold back time | 
|  | * has to run out first. | 
|  | */ | 
|  | DoTrapSend = SK_FALSE; | 
|  | } | 
|  |  | 
|  | /* Check now whether we have to log an Error */ | 
|  | if (pSen->SenLastErrLogTS + SK_SEN_ERR_LOG_HOLD > | 
|  | CurrTime) { | 
|  | /* | 
|  | * Do NOT log the error. The hold back time | 
|  | * has to run out first. | 
|  | */ | 
|  | DoErrLog = SK_FALSE; | 
|  | } | 
|  | } | 
|  | else { | 
|  | /* We came from a different state -> Set Begin Time Stamp */ | 
|  | pSen->SenBegErrTS = CurrTime; | 
|  | pSen->SenErrFlag = SK_SEN_ERR_ERR; | 
|  | } | 
|  |  | 
|  | if (DoTrapSend) { | 
|  | /* Set current Time */ | 
|  | pSen->SenLastErrTrapTS = CurrTime; | 
|  | pSen->SenErrCts++; | 
|  |  | 
|  | /* Queue PNMI Event */ | 
|  | SkEventQueue(pAC, SKGE_PNMI, (TooHigh ? | 
|  | SK_PNMI_EVT_SEN_ERR_UPP : | 
|  | SK_PNMI_EVT_SEN_ERR_LOW), | 
|  | ParaLocal); | 
|  | } | 
|  |  | 
|  | if (DoErrLog) { | 
|  | /* Set current Time */ | 
|  | pSen->SenLastErrLogTS = CurrTime; | 
|  |  | 
|  | if (pSen->SenType == SK_SEN_TEMP) { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E011, SKERR_I2C_E011MSG); | 
|  | } | 
|  | else if (pSen->SenType == SK_SEN_VOLT) { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E012, SKERR_I2C_E012MSG); | 
|  | } | 
|  | else { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E015, SKERR_I2C_E015MSG); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Check the Value against the thresholds */ | 
|  | /* 2nd: Warning thresholds */ | 
|  | TooHigh = (pSen->SenValue > pSen->SenThreWarnHigh); | 
|  | TooLow = (pSen->SenValue < pSen->SenThreWarnLow); | 
|  |  | 
|  | if (!IsError && (TooHigh || TooLow)) { | 
|  | /* Error condition is satisfied */ | 
|  | DoTrapSend = SK_TRUE; | 
|  | DoErrLog = SK_TRUE; | 
|  |  | 
|  | if (pSen->SenErrFlag == SK_SEN_ERR_WARN) { | 
|  | /* This state is the former one */ | 
|  |  | 
|  | /* So check first whether we have to send a trap */ | 
|  | if (pSen->SenLastWarnTrapTS + SK_SEN_WARN_TR_HOLD > CurrTime) { | 
|  | /* | 
|  | * Do NOT send the Trap. The hold back time | 
|  | * has to run out first. | 
|  | */ | 
|  | DoTrapSend = SK_FALSE; | 
|  | } | 
|  |  | 
|  | /* Check now whether we have to log an Error */ | 
|  | if (pSen->SenLastWarnLogTS + SK_SEN_WARN_LOG_HOLD > CurrTime) { | 
|  | /* | 
|  | * Do NOT log the error. The hold back time | 
|  | * has to run out first. | 
|  | */ | 
|  | DoErrLog = SK_FALSE; | 
|  | } | 
|  | } | 
|  | else { | 
|  | /* We came from a different state -> Set Begin Time Stamp */ | 
|  | pSen->SenBegWarnTS = CurrTime; | 
|  | pSen->SenErrFlag = SK_SEN_ERR_WARN; | 
|  | } | 
|  |  | 
|  | if (DoTrapSend) { | 
|  | /* Set current Time */ | 
|  | pSen->SenLastWarnTrapTS = CurrTime; | 
|  | pSen->SenWarnCts++; | 
|  |  | 
|  | /* Queue PNMI Event */ | 
|  | SkEventQueue(pAC, SKGE_PNMI, (TooHigh ? | 
|  | SK_PNMI_EVT_SEN_WAR_UPP : | 
|  | SK_PNMI_EVT_SEN_WAR_LOW), | 
|  | ParaLocal); | 
|  | } | 
|  |  | 
|  | if (DoErrLog) { | 
|  | /* Set current Time */ | 
|  | pSen->SenLastWarnLogTS = CurrTime; | 
|  |  | 
|  | if (pSen->SenType == SK_SEN_TEMP) { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E009, SKERR_I2C_E009MSG); | 
|  | } | 
|  | else if (pSen->SenType == SK_SEN_VOLT) { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E010, SKERR_I2C_E010MSG); | 
|  | } | 
|  | else { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E014, SKERR_I2C_E014MSG); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Check for NO error at all */ | 
|  | if (!IsError && !TooHigh && !TooLow) { | 
|  | /* Set o.k. Status if no error and no warning condition */ | 
|  | pSen->SenErrFlag = SK_SEN_ERR_OK; | 
|  | } | 
|  |  | 
|  | /* End of check against the thresholds */ | 
|  |  | 
|  | /* Bug fix AF: 16.Aug.2001: Correct the init base | 
|  | * of LM80 sensor. | 
|  | */ | 
|  | if (pSen->SenInit == SK_SEN_DYN_INIT_PCI_IO) { | 
|  |  | 
|  | pSen->SenInit = SK_SEN_DYN_INIT_NONE; | 
|  |  | 
|  | if (pSen->SenValue > SK_SEN_PCI_IO_RANGE_LIMITER) { | 
|  | /* 5V PCI-IO Voltage */ | 
|  | pSen->SenThreWarnLow = SK_SEN_PCI_IO_5V_LOW_WARN; | 
|  | pSen->SenThreErrLow = SK_SEN_PCI_IO_5V_LOW_ERR; | 
|  | } | 
|  | else { | 
|  | /* 3.3V PCI-IO Voltage */ | 
|  | pSen->SenThreWarnHigh = SK_SEN_PCI_IO_3V3_HIGH_WARN; | 
|  | pSen->SenThreErrHigh = SK_SEN_PCI_IO_3V3_HIGH_ERR; | 
|  | } | 
|  | } | 
|  |  | 
|  | #ifdef TEST_ONLY | 
|  | /* Dynamic thresholds also for VAUX of LM80 sensor */ | 
|  | if (pSen->SenInit == SK_SEN_DYN_INIT_VAUX) { | 
|  |  | 
|  | pSen->SenInit = SK_SEN_DYN_INIT_NONE; | 
|  |  | 
|  | /* 3.3V VAUX Voltage */ | 
|  | if (pSen->SenValue > SK_SEN_VAUX_RANGE_LIMITER) { | 
|  | pSen->SenThreWarnLow = SK_SEN_VAUX_3V3_LOW_WARN; | 
|  | pSen->SenThreErrLow = SK_SEN_VAUX_3V3_LOW_ERR; | 
|  | } | 
|  | /* 0V VAUX Voltage */ | 
|  | else { | 
|  | pSen->SenThreWarnHigh = SK_SEN_VAUX_0V_WARN_ERR; | 
|  | pSen->SenThreErrHigh = SK_SEN_VAUX_0V_WARN_ERR; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Check initialization state: | 
|  | * The VIO Thresholds need adaption | 
|  | */ | 
|  | if (!pSen->SenInit && pSen->SenReg == LM80_VT1_IN && | 
|  | pSen->SenValue > SK_SEN_WARNLOW2C && | 
|  | pSen->SenValue < SK_SEN_WARNHIGH2) { | 
|  | pSen->SenThreErrLow = SK_SEN_ERRLOW2C; | 
|  | pSen->SenThreWarnLow = SK_SEN_WARNLOW2C; | 
|  | pSen->SenInit = SK_TRUE; | 
|  | } | 
|  |  | 
|  | if (!pSen->SenInit && pSen->SenReg == LM80_VT1_IN && | 
|  | pSen->SenValue > SK_SEN_WARNLOW2 && | 
|  | pSen->SenValue < SK_SEN_WARNHIGH2C) { | 
|  | pSen->SenThreErrHigh = SK_SEN_ERRHIGH2C; | 
|  | pSen->SenThreWarnHigh = SK_SEN_WARNHIGH2C; | 
|  | pSen->SenInit = SK_TRUE; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | if (pSen->SenInit != SK_SEN_DYN_INIT_NONE) { | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_I2C_E013, SKERR_I2C_E013MSG); | 
|  | } | 
|  | }	/* SkI2cCheckSensor */ | 
|  |  | 
|  |  | 
|  | /* | 
|  | * The only Event to be served is the timeout event | 
|  | * | 
|  | */ | 
|  | int	SkI2cEvent( | 
|  | SK_AC		*pAC,	/* Adapter Context */ | 
|  | SK_IOC		IoC,	/* I/O Context */ | 
|  | SK_U32		Event,	/* Module specific Event */ | 
|  | SK_EVPARA	Para)	/* Event specific Parameter */ | 
|  | { | 
|  | int			ReadComplete; | 
|  | SK_SENSOR	*pSen; | 
|  | SK_U32		Time; | 
|  | SK_EVPARA	ParaLocal; | 
|  | int			i; | 
|  |  | 
|  | /* New case: no sensors */ | 
|  | if (pAC->I2c.MaxSens == 0) { | 
|  | return(0); | 
|  | } | 
|  |  | 
|  | switch (Event) { | 
|  | case SK_I2CEV_IRQ: | 
|  | pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens]; | 
|  | ReadComplete = SkI2cReadSensor(pAC, IoC, pSen); | 
|  |  | 
|  | if (ReadComplete) { | 
|  | /* Check sensor against defined thresholds */ | 
|  | SkI2cCheckSensor(pAC, pSen); | 
|  |  | 
|  | /* Increment Current sensor and set appropriate Timeout */ | 
|  | pAC->I2c.CurrSens++; | 
|  | if (pAC->I2c.CurrSens >= pAC->I2c.MaxSens) { | 
|  | pAC->I2c.CurrSens = 0; | 
|  | Time = SK_I2C_TIM_LONG; | 
|  | } | 
|  | else { | 
|  | Time = SK_I2C_TIM_SHORT; | 
|  | } | 
|  |  | 
|  | /* Start Timer */ | 
|  | ParaLocal.Para64 = (SK_U64)0; | 
|  |  | 
|  | pAC->I2c.TimerMode = SK_TIMER_NEW_GAUGING; | 
|  |  | 
|  | SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, Time, | 
|  | SKGE_I2C, SK_I2CEV_TIM, ParaLocal); | 
|  | } | 
|  | else { | 
|  | /* Start Timer */ | 
|  | ParaLocal.Para64 = (SK_U64)0; | 
|  |  | 
|  | pAC->I2c.TimerMode = SK_TIMER_WATCH_SM; | 
|  |  | 
|  | SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, SK_I2C_TIM_WATCH, | 
|  | SKGE_I2C, SK_I2CEV_TIM, ParaLocal); | 
|  | } | 
|  | break; | 
|  | case SK_I2CEV_TIM: | 
|  | if (pAC->I2c.TimerMode == SK_TIMER_NEW_GAUGING) { | 
|  |  | 
|  | ParaLocal.Para64 = (SK_U64)0; | 
|  | SkTimerStop(pAC, IoC, &pAC->I2c.SenTimer); | 
|  |  | 
|  | pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens]; | 
|  | ReadComplete = SkI2cReadSensor(pAC, IoC, pSen); | 
|  |  | 
|  | if (ReadComplete) { | 
|  | /* Check sensor against defined thresholds */ | 
|  | SkI2cCheckSensor(pAC, pSen); | 
|  |  | 
|  | /* Increment Current sensor and set appropriate Timeout */ | 
|  | pAC->I2c.CurrSens++; | 
|  | if (pAC->I2c.CurrSens == pAC->I2c.MaxSens) { | 
|  | pAC->I2c.CurrSens = 0; | 
|  | Time = SK_I2C_TIM_LONG; | 
|  | } | 
|  | else { | 
|  | Time = SK_I2C_TIM_SHORT; | 
|  | } | 
|  |  | 
|  | /* Start Timer */ | 
|  | ParaLocal.Para64 = (SK_U64)0; | 
|  |  | 
|  | pAC->I2c.TimerMode = SK_TIMER_NEW_GAUGING; | 
|  |  | 
|  | SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, Time, | 
|  | SKGE_I2C, SK_I2CEV_TIM, ParaLocal); | 
|  | } | 
|  | } | 
|  | else { | 
|  | pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens]; | 
|  | pSen->SenErrFlag = SK_SEN_ERR_FAULTY; | 
|  | SK_I2C_STOP(IoC); | 
|  |  | 
|  | /* Increment Current sensor and set appropriate Timeout */ | 
|  | pAC->I2c.CurrSens++; | 
|  | if (pAC->I2c.CurrSens == pAC->I2c.MaxSens) { | 
|  | pAC->I2c.CurrSens = 0; | 
|  | Time = SK_I2C_TIM_LONG; | 
|  | } | 
|  | else { | 
|  | Time = SK_I2C_TIM_SHORT; | 
|  | } | 
|  |  | 
|  | /* Start Timer */ | 
|  | ParaLocal.Para64 = (SK_U64)0; | 
|  |  | 
|  | pAC->I2c.TimerMode = SK_TIMER_NEW_GAUGING; | 
|  |  | 
|  | SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, Time, | 
|  | SKGE_I2C, SK_I2CEV_TIM, ParaLocal); | 
|  | } | 
|  | break; | 
|  | case SK_I2CEV_CLEAR: | 
|  | for (i = 0; i < SK_MAX_SENSORS; i++) { | 
|  | pAC->I2c.SenTable[i].SenErrFlag = SK_SEN_ERR_OK; | 
|  | pAC->I2c.SenTable[i].SenErrCts = 0; | 
|  | pAC->I2c.SenTable[i].SenWarnCts = 0; | 
|  | pAC->I2c.SenTable[i].SenBegErrTS = 0; | 
|  | pAC->I2c.SenTable[i].SenBegWarnTS = 0; | 
|  | pAC->I2c.SenTable[i].SenLastErrTrapTS = (SK_U64)0; | 
|  | pAC->I2c.SenTable[i].SenLastErrLogTS = (SK_U64)0; | 
|  | pAC->I2c.SenTable[i].SenLastWarnTrapTS = (SK_U64)0; | 
|  | pAC->I2c.SenTable[i].SenLastWarnLogTS = (SK_U64)0; | 
|  | } | 
|  | break; | 
|  | default: | 
|  | SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E006, SKERR_I2C_E006MSG); | 
|  | } | 
|  |  | 
|  | return(0); | 
|  | }	/* SkI2cEvent*/ | 
|  |  | 
|  | #endif /* !SK_DIAG */ |