Changes since U-Boot 1.1.4:
======================================================================
+* Remove dead code (i2o and dma) from cpu/mpc824x/drivers/ directory.
+
* Fix LOG_DIR directory creation error.
Add support for automatic creation of BUILD_DIR directory.
+++ /dev/null
-##########################################################################
-#
-# Copyright Motorola, Inc. 1997
-# ALL RIGHTS RESERVED
-#
-# You are hereby granted a copyright license to use, modify, and
-# distribute the SOFTWARE so long as this entire notice is retained
-# without alteration in any modified and/or redistributed versions,
-# and that such modified versions are clearly identified as such.
-# No licenses are granted by implication, estoppel or otherwise under
-# any patents or trademarks of Motorola, Inc.
-#
-# The SOFTWARE is provided on an "AS IS" basis and without warranty.
-# To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS
-# ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED
-# WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-# PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH
-# REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS
-# THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS.
-#
-# To the maximum extent permitted by applicable law, IN NO EVENT SHALL
-# MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
-# (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF
-# BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
-# INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR
-# INABILITY TO USE THE SOFTWARE.
-#
-############################################################################
-TARGET = libdma.a
-
-DEBUG = -DDMADBG
-LST = -Hanno -S
-OPTIM =
-CC = /risc/tools/pkgs/metaware/bin/hcppc
-CFLAGS = -Hnocopyr -c -Hsds -Hon=Char_default_unsigned -Hon=Char_is_rep -I../inc -I/risc/tools/pkgs/metaware/inc
-CCobj = $(CC) $(CFLAGS) $(DEBUG) $(OPTIM)
-PREP = $(CC) $(CFLAGS) -P
-
-# Assembler used to build the .s files (for the board version)
-
-ASOPT = -big_si -c
-ASDEBUG = -l -fm
-AS = /risc/tools/pkgs/metaware/bin/asppc
-
-# Linker to bring .o files together into an executable.
-
-LKOPT = -Bbase=0 -q -r -Qn
-LKCMD =
-LINK = /risc/tools/pkgs/metaware/bin/ldppc $(LKCMD) $(LKOPT)
-
-# DOS Utilities
-
-DEL = rm
-COPY = cp
-LIST = ls
-
-OBJECTS = dma1.o dma2.o
-
-all: $(TARGET)
-
-$(TARGET): $(OBJECTS)
- $(LINK) $(OBJECTS) -o $@
-
-objects: dma1.o
-
-clean:
- $(DEL) -f *.o *.i *.map *.lst $(TARGET) $(OBJECTS)
-
-.s.o:
- $(DEL) -f $*.i
- $(PREP) -Hasmcpp $<
- $(AS) $(ASOPT) $*.i
-# $(AS) $(ASOPT) $(ASDEBUG) $*.i > $*.lst
-
-.c.o:
- $(CCobj) $<
-
-.c.s:
- $(CCobj) $(LST) $<
-
-dma1.o: dma_export.h dma.h dma1.c
-
-dma2.o: dma.h dma2.s
+++ /dev/null
-##########################################################################
-#
-# makefile_pc for use with mksnt tools drivers/dma
-#
-# Copyright Motorola, Inc. 1997
-# ALL RIGHTS RESERVED
-#
-# You are hereby granted a copyright license to use, modify, and
-# distribute the SOFTWARE so long as this entire notice is retained
-# without alteration in any modified and/or redistributed versions,
-# and that such modified versions are clearly identified as such.
-# No licenses are granted by implication, estoppel or otherwise under
-# any patents or trademarks of Motorola, Inc.
-#
-# The SOFTWARE is provided on an "AS IS" basis and without warranty.
-# To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS
-# ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED
-# WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-# PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH
-# REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS
-# THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS.
-#
-# To the maximum extent permitted by applicable law, IN NO EVENT SHALL
-# MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
-# (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF
-# BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
-# INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR
-# INABILITY TO USE THE SOFTWARE.
-#
-############################################################################
-TARGET = libdma.a
-
-DEBUG = -DDMADBG
-LST = -Hanno -S
-OPTIM =
-CC = m:/old_tools/tools/hcppc/bin/hcppc
-CFLAGS = -Hnocopyr -c -Hsds -Hon=Char_default_unsigned -Hon=Char_is_rep -I../inc -I/risc/tools/pkgs/metaware/inc
-CCobj = $(CC) $(CFLAGS) $(DEBUG) $(OPTIM)
-PREP = $(CC) $(CFLAGS) -P
-
-# Assembler used to build the .s files (for the board version)
-
-ASOPT = -big_si -c
-ASDEBUG = -l -fm
-AS = m:/old_tools/tools/hcppc/bin/asppc
-
-# Linker to bring .o files together into an executable.
-
-LKOPT = -Bbase=0 -q -r -Qn
-LKCMD =
-LINK = m:/old_tools/tools/hcppc/bin/ldppc $(LKCMD) $(LKOPT)
-
-# DOS Utilities
-
-DEL = rm
-COPY = cp
-LIST = ls
-
-OBJECTS = dma1.o dma2.o
-
-all: $(TARGET)
-
-$(TARGET): $(OBJECTS)
- $(LINK) $(OBJECTS) -o $@
-
-objects: dma1.o
-
-clean:
- $(DEL) -f *.o *.i *.map *.lst $(TARGET) $(OBJECTS)
-
-.s.o:
- $(DEL) -f $*.i
- $(PREP) -Hasmcpp $<
- $(AS) $(ASOPT) $*.i
-# $(AS) $(ASOPT) $(ASDEBUG) $*.i > $*.lst
-
-.c.o:
- $(CCobj) $<
-
-.c.s:
- $(CCobj) $(LST) $<
-
-dma1.o: dma_export.h dma.h dma1.c
- $(CCobj) $<
-
-dma2.o: dma.h dma2.s
- $(DEL) -f $*.i
- $(PREP) -Hasmcpp $<
- $(AS) $(ASOPT) $*.i
+++ /dev/null
-CONTENT:
-
- dma.h
- dma1.c
- dma2.s
-
-WHAT ARE THESE FILES:
-
-These files contain MPC8240 (Kahlua) DMA controller
-driver routines. The driver routines are not
-written for any specific operating system.
-They serves the purpose of code sample, and
-jump-start for using the MPC8240 DMA controller.
-
-For the reason of correctness of C language
-syntax, these files are compiled by Metaware
-C compiler and assembler.
-
-ENDIAN NOTATION:
-
-The algorithm is designed for big-endian mode,
-software is responsible for byte swapping.
-
-USAGE:
-
-1. The host system that is running on MPC8240
- or using MPC8240 as I/O device shall link
- the files listed here. The memory location
- of driver routines shall take into account of
- that driver routines need to run in supervisor
- mode and they process DMA controller interrupt.
-
-2. The host system is responsible for configuring
- the MPC8240 including Embedded Utilities Memory
- Block. Since the DMA controller on MPC8240 can
- be accessed by either local 603e core or the host
- that MPC8240 serves as I/O processor through host
- PCI configuration, it is important that the local
- processor uses EUMBBAR to access its local DMA
- controller while the PCI master uses I/O
- processor's PCSRBAR to access the DMA controller
- on I/O device.
-
- To qualify whether is EUMBBAR or PCSRBAR, one
- additional parameter is requied from the host
- system, LOCAL or REMOTE so that the base value
- can be correctly interpreted.
-
-3. If the host system is also using the EPIC unit
- on MPC8240, the system can register the
- DMA_ISR with the EPIC including other
- desired resources.
-
- If the host system does not using the EPIC unit
- on MPC8240, DMA_ISR function can be called for
- each desired time interval.
-
- In both cases, the host system is free to
- provide its own interrupt service routine.
-
-4. To start a direct mode DMA transaction,
- use DMA_Bld_Curr with the start parameter
- set to 1.
-
- To start a chaining mode DMA transaction,
- the application shall build descriptors
- in memory first, next, use DMA_Bld_Desp
- with the start parameter set to 1.
-
-5. DMA_Start function clears, then sets the CS
- bit of DMA mode register.
-
- DMA_Halt function clears the CS bit of DMA
- mode register.
-
- These functions can be used to start and
- halt the DMA transaction.
-
- If the chaining descriptors has been
- modified since the last time a DMA
- transaction started, use DMA_Chn_Cnt
- function to let DMA controller process
- the modified descriptor chain without
- stopping or disturbing the current DMA
- transaction.
-
- It is the host system's responsibility of
- setting up the correct DMA transfer mode
- and pass the correct memory address parameters.
-
-6. It is the host system's responsibility of
- queueing the DMA I/O request. The host
- system can call the DMA_ISR with its own
- desired interrupt service subroutines to
- handle each individual interrupt and queued
- DMA I/O requests.
-
-7. The DMA driver routines contains a set
- of utilities, Set and Get, for host system
- to query and modify the desired DMA registers.
+++ /dev/null
-#ifndef DMA_H
-#define DMA_H
-/*******************************************************
- *
- * copyright @ Motorola 1999
- *
- *******************************************************/
-#define NUM_DMA_REG 7
-#define DMA_MR_REG 0
-#define DMA_SR_REG 1
-#define DMA_CDAR_REG 2
-#define DMA_SAR_REG 3
-#define DMA_DAR_REG 4
-#define DMA_BCR_REG 5
-#define DMA_NDAR_REG 6
-
-typedef enum _dmastatus
-{
- DMASUCCESS = 0x1000,
- DMALMERROR,
- DMAPERROR,
- DMACHNBUSY,
- DMAEOSINT,
- DMAEOCAINT,
- DMAINVALID,
- DMANOEVENT,
-} DMAStatus;
-
-typedef enum _location
-{
- LOCAL = 0, /* local processor accesses on board DMA,
- local processor's eumbbar is required */
- REMOTE = 1, /* PCI master accesses DMA on I/O board,
- I/O processor's pcsrbar is required */
-} LOCATION;
-
-typedef enum dma_mr_bit
-{
- IRQS = 0x00080000,
- PDE = 0x00040000,
- DAHTS = 0x00030000,
- SAHTS = 0x0000c000,
- DAHE = 0x00002000,
- SAHE = 0x00001000,
- PRC = 0x00000c00,
- EIE = 0x00000080,
- EOTIE = 0x00000040,
- DL = 0x00000008,
- CTM = 0x00000004,
- CC = 0x00000002,
- CS = 0x00000001,
-} DMA_MR_BIT;
-
-typedef enum dma_sr_bit
-{
- LME = 0x00000080,
- PE = 0x00000010,
- CB = 0x00000004,
- EOSI = 0x00000002,
- EOCAI = 0x00000001,
-} DMA_SR_BIT;
-
-/* structure for DMA Mode Register */
-typedef struct _dma_mr
-{
- unsigned int reserved0 : 12;
- unsigned int irqs : 1;
- unsigned int pde : 1;
- unsigned int dahts : 2;
- unsigned int sahts : 2;
- unsigned int dahe : 1;
- unsigned int sahe : 1;
- unsigned int prc : 2;
- unsigned int reserved1 : 1;
- unsigned int eie : 1;
- unsigned int eotie : 1;
- unsigned int reserved2 : 3;
- unsigned int dl : 1;
- unsigned int ctm : 1;
- /* if chaining mode is enabled, any time, user can modify the
- * descriptor and does not need to halt the current DMA transaction.
- * Set CC bit, enable DMA to process the modified descriptors
- * Hardware will clear this bit each time, DMA starts.
- */
- unsigned int cc : 1;
- /* cs bit has dua role, halt the current DMA transaction and
- * (re)start DMA transaction. In chaining mode, if the descriptor
- * needs modification, cs bit shall be used not the cc bit.
- * Hardware will not set/clear this bit each time DMA transaction
- * stops or starts. Software shall do it.
- *
- * cs bit shall not be used to halt chaining DMA transaction for
- * modifying the descriptor. That is the role of CC bit.
- */
- unsigned int cs : 1;
-} DMA_MR;
-
-/* structure for DMA Status register */
-typedef struct _dma_sr
-{
- unsigned int reserved0 : 24;
- unsigned int lme : 1;
- unsigned int reserved1 : 2;
- unsigned int pe : 1;
- unsigned int reserved2 : 1;
- unsigned int cb : 1;
- unsigned int eosi : 1;
- unsigned int eocai : 1;
-} DMA_SR;
-
-/* structure for DMA current descriptor address register */
-typedef struct _dma_cdar
-{
- unsigned int cda : 27;
- unsigned int snen : 1;
- unsigned int eosie : 1;
- unsigned int ctt : 2;
- unsigned int eotd : 1;
-} DMA_CDAR;
-
-/* structure for DMA byte count register */
-typedef struct _dma_bcr
-{
- unsigned int reserved : 6;
- unsigned int bcr : 26;
-} DMA_BCR;
-
-/* structure for DMA Next Descriptor Address register */
-typedef struct _dma_ndar
-{
- unsigned int nda : 27;
- unsigned int ndsnen : 1;
- unsigned int ndeosie: 1;
- unsigned int ndctt : 2;
- unsigned int eotd : 1;
-} DMA_NDAR;
-
-/* structure for DMA current transaction info */
-typedef struct _dma_curr
-{
- unsigned int src_addr;
- unsigned int dest_addr;
- unsigned int byte_cnt;
-} DMA_CURR;
-
-/************************* Kernel API********************
- * Kernel APIs are used to interface with O.S. kernel.
- * They are the functions required by O.S. kernel to
- * provide I/O service.
- ********************************************************/
-
-/**************DMA Device Control Functions ********/
-
-/**
- * Note:
- *
- * In all following functions, the host (KAHLUA) processor has a
- * choice of accessing on board local DMA (LOCAL),
- * or DMA on a distributed KAHLUA (REMOTE). In either case,
- * the caller shall pass the configured embedded utility memory
- * block base address relative to the DMA. If LOCAL DMA is used,
- * this parameter shall be EUMBBAR, if REMOTE is used, the
- * parameter shall be the corresponding PCSRBAR.
- **/
-
-/**************************************************************
- * function: DMA_Get_Stat
- *
- * description: return the content of status register of
- * the given DMA channel
- * if error, return DMAINVALID. Otherwise return
- * DMASUCCESS.
- *
- **************************************************************/
-static DMAStatus DMA_Get_Stat( LOCATION, unsigned int eumbbar, unsigned int channel, DMA_SR * );
-
-/**************************************************************
- * function: DMA_Get_Mode
- *
- * description: return the content of mode register of the
- * given DMA channel
- * if error, return DMAINVALID. Otherwise return DMASUCCESS.
- *
- **************************************************************/
-static DMAStatus DMA_Get_Mode( LOCATION, unsigned int eumbbar, unsigned int channel, DMA_MR * );
-
-/**************************************************************
- * function: DMA_Set_Mode
- *
- * description: Set a new mode to a given DMA channel
- * return DMASUCCESS if success, otherwise return DMACHNINVALID
- *
- * note: It is not a good idea of changing the DMA mode during
- * the middle of a transaction.
- **************************************************************/
-static DMAStatus DMA_Set_Mode( LOCATION, unsigned int eumbbar, unsigned int channel, DMA_MR mode );
-
-/*************************************************************
- * function: DMA_ISR
- *
- * description: DMA interrupt service routine
- * return DMAStatus based on the status
- *
- *************************************************************/
-static DMAStatus DMA_ISR( unsigned int eumbbar,
- unsigned int channel,
- DMAStatus (*lme_func)( unsigned int, unsigned int, DMAStatus ),
- DMAStatus (*pe_func) ( unsigned int, unsigned int, DMAStatus ),
- DMAStatus (*eosi_func)( unsigned int, unsigned int, DMAStatus ),
- DMAStatus (*eocai_func)(unsigned int, unsigned int, DMAStatus ));
-
-static DMAStatus dma_error_func( unsigned int, unsigned int, DMAStatus );
-
-/********************* DMA I/O function ********************/
-
-/************************************************************
- * function: DMA_Start
- *
- * description: start a given DMA channel transaction
- * return DMASUCCESS if success, otherwise return DMACHNINVALID
- *
- * note: this function will clear DMA_MR(CC) first, then
- * set DMA_MR(CC).
- ***********************************************************/
-static DMAStatus DMA_Start( LOCATION, unsigned int eumbbar,unsigned int channel );
-
-/***********************************************************
- * function: DMA_Halt
- *
- * description: halt the current dma transaction on the specified
- * channel.
- * return DMASUCCESS if success, otherwise return DMACHNINVALID
- *
- * note: if the specified DMA channel is idle, nothing happens
- *************************************************************/
-static DMAStatus DMA_Halt( LOCATION, unsigned int eumbbar,unsigned int channel );
-
-/*************************************************************
- * function: DMA_Chn_Cnt
- *
- * description: set the DMA_MR(CC) bit for a given channel
- * that is in chaining mode.
- * return DMASUCCESS if successfule, otherwise return DMACHNINVALID
- *
- * note: if the given channel is not in chaining mode, nothing
- * happen.
- *
- *************************************************************/
-static DMAStatus DMA_Chn_Cnt( LOCATION, unsigned int eumbbar,unsigned int channel );
-
-/*********************** App. API ***************************
- * App. API are the APIs Kernel provides for the application
- * level program
- ************************************************************/
-/**************************************************************
- * function: DMA_Bld_Curr
- *
- * description: set current src, dest, byte count registers
- * according to the desp for a given channel
- *
- * if the given channel is busy, no change made,
- * return DMACHNBUSY.
- *
- * otherwise return DMASUCCESS.
- *
- * note:
- **************************************************************/
-static DMAStatus DMA_Bld_Curr( LOCATION,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CURR desp );
-
-/**************************************************************
- * function: DMA_Poke_Curr
- *
- * description: poke the current src, dest, byte count registers
- * for a given channel.
- *
- * return DMASUCCESS if no error otherwise return DMACHNERROR
- *
- * note: Due to the undeterministic parallelism, in chaining
- * mode, the value returned by this function shall
- * be taken as reference when the query is made rather
- * than the absolute snapshot when the value is returned.
- **************************************************************/
-static DMAStatus DMA_Poke_Curr( LOCATION,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CURR* desp );
-
-/**************************************************************
- * function: DMA_Bld_Desp
- *
- * description: set current descriptor address register
- * according to the desp for a given channel
- *
- * if the given channel is busy return DMACHNBUSY
- * and no change made, otherwise return DMASUCCESS.
- *
- * note:
- **************************************************************/
-static DMAStatus DMA_Bld_Desp( LOCATION host,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CDAR desp );
-
-/**************************************************************
- * function: DMA_Poke_Desp
- *
- * description: poke the current descriptor address register
- * for a given channel
- *
- * return DMASUCCESS if no error otherwise return
- * DMAINVALID
- *
- * note: Due to the undeterministic parallellism of DMA operation,
- * the value returned by this function shall be taken as
- * the most recently used descriptor when the last time
- * DMA starts a chaining mode operation.
- **************************************************************/
-static DMAStatus DMA_Poke_Desp( LOCATION,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CDAR *desp );
-
-#endif
+++ /dev/null
-/************************************************************
- *
- * copyright @ Motorola, 1999
- *
- * App. API
- *
- * App. API are the APIs Kernel provides for the application
- * level program
- *
- ************************************************************/
-#include "dma_export.h"
-#include "dma.h"
-
-/* Define a macro to use an optional application-layer print function, if
- * one was passed to the library during initialization. If there was no
- * function pointer passed, this protects against referencing a NULL pointer.
- * Also define The global variable that holds the passed pointer.
- */
-#define PRINT if ( app_print ) app_print
-static int (*app_print)(char *,...);
-
-/* Set by call to get_eumbbar during DMA_Initialize.
- * This could be globally available to the library, but there is
- * an advantage to passing it as a parameter: it is already in a register
- * and doesn't have to be loaded from memory. Also, that is the way the
- * library was already implemented and I don't want to change it without
- * a more detailed analysis.
- * It is being set as a global variable during initialization to hide it from
- * the DINK application layer, because it is Kahlua-specific. I think that
- * get_eumbbar, load_runtime_reg, and store_runtime_reg should be defined in
- * a Kahlua-specific library dealing with the embedded utilities memory block.
- * Right now, get_eumbbar is defined in dink32/kahlua.s. The other two are
- * defined in dink32/drivers/i2c/i2c2.s, drivers/dma/dma2.s, etc.
- */
-static unsigned int Global_eumbbar = 0;
-extern unsigned int get_eumbbar();
-
-
-extern unsigned int load_runtime_reg( unsigned int eumbbar, unsigned int reg );
-#pragma Alias( load_runtime_reg, "load_runtime_reg" );
-
-extern void store_runtime_reg( unsigned int eumbbar, unsigned int reg, unsigned int val );
-#pragma Alias( store_runtime_reg, "store_runtime_reg" );
-
-unsigned int dma_reg_tb[][14] = {
- /* local DMA registers */
- {
- /* DMA_0_MR */ 0x00001100,
- /* DMA_0_SR */ 0x00001104,
- /* DMA_0_CDAR */ 0x00001108,
- /* DMA_0_SAR */ 0x00001110,
- /* DMA_0_DAR */ 0x00001118,
- /* DMA_0_BCR */ 0x00001120,
- /* DMA_0_NDAR */ 0x00001124,
- /* DMA_1_MR */ 0x00001200,
- /* DMA_1_SR */ 0x00001204,
- /* DMA_1_CDAR */ 0x00001208,
- /* DMA_1_SAR */ 0x00001210,
- /* DMA_1_DAR */ 0x00001218,
- /* DMA_1_BCR */ 0x00001220,
- /* DMA_1_NDAR */ 0x00001224,
- },
- /* remote DMA registers */
- {
- /* DMA_0_MR */ 0x00000100,
- /* DMA_0_SR */ 0x00000104,
- /* DMA_0_CDAR */ 0x00000108,
- /* DMA_0_SAR */ 0x00000110,
- /* DMA_0_DAR */ 0x00000118,
- /* DMA_0_BCR */ 0x00000120,
- /* DMA_0_NDAR */ 0x00000124,
- /* DMA_1_MR */ 0x00000200,
- /* DMA_1_SR */ 0x00000204,
- /* DMA_1_CDAR */ 0x00000208,
- /* DMA_1_SAR */ 0x00000210,
- /* DMA_1_DAR */ 0x00000218,
- /* DMA_1_BCR */ 0x00000220,
- /* DMA_1_NDAR */ 0x00000224,
- },
-};
-
-/* API functions */
-
-/* Initialize DMA unit with the following:
- * optional pointer to application layer print function
- *
- * These parameters may be added:
- * ???
- * Interrupt enables, modes, etc. are set for each transfer.
- *
- * This function must be called before DMA unit can be used.
- */
-extern
-DMA_Status DMA_Initialize( int (*p)(char *,...))
-{
- DMAStatus status;
- /* establish the pointer, if there is one, to the application's "printf" */
- app_print = p;
-
- /* If this is the first call, get the embedded utilities memory block
- * base address. I'm not sure what to do about error handling here:
- * if a non-zero value is returned, accept it.
- */
- if ( Global_eumbbar == 0)
- Global_eumbbar = get_eumbbar();
- if ( Global_eumbbar == 0)
- {
- PRINT( "DMA_Initialize: can't find EUMBBAR\n" );
- return DMA_ERROR;
- }
-
- return DMA_SUCCESS;
-}
-
-
-/* Perform the DMA transfer, only direct mode is currently implemented.
- * At this point, I think it would be better to define a different
- * function for chaining mode.
- * Also, I'm not sure if it is appropriate to have the "generic" API
- * accept snoop and int_steer parameters. The DINK user interface allows
- * them, so for now I'll leave them.
- *
- * int_steer controls DMA interrupt steering to PCI or local processor
- * type is the type of transfer: M2M, M2P, P2M, P2P
- * source is the source address of the data
- * dest is the destination address of the data
- * len is the length of data to transfer
- * channel is the DMA channel to use for the transfer
- * snoop is the snoop enable control
- */
-extern DMA_Status DMA_direct_transfer( DMA_INTERRUPT_STEER int_steer,
- DMA_TRANSFER_TYPE type,
- unsigned int source,
- unsigned int dest,
- unsigned int len,
- DMA_CHANNEL channel,
- DMA_SNOOP_MODE snoop)
-{
- DMA_MR md;
- DMA_CDAR cdar;
- /* it's inappropriate for curr to be a struct, but I'll leave it */
- DMA_CURR curr;
-
- DMAStatus stat;
-
- /* The rest of this code was moved from device.c test_dma to here.
- * It needs to be cleaned up and validated, but at least it is removed
- * from the application and API. Most of the mode is left hard coded.
- * This should be changed after the final API is defined and the user
- * application has a way to control the transfer.
- *
- */
-
- if ( DMA_Get_Mode( LOCAL, Global_eumbbar, channel, &md ) != DMASUCCESS )
- {
- return DMA_ERROR;
- }
-
- md.irqs = int_steer;
- md.pde = 0;
- md.dahts = 3; /* 8 - byte */
- md.sahts = 3; /* 8 - byte */
- md.dahe = 0;
- md.sahe = 0;
- md.prc = 0;
- /* if steering interrupts to local processor, use polling mode */
- if ( int_steer == DMA_INT_STEER_PCI )
- {
- md.eie = 1;
- md.eotie = 1;
- } else {
- md.eie = 0;
- md.eotie = 0;
- }
- md.dl = 0;
- md.ctm = 1; /* direct mode */
- md.cc = 0;
-
- /* validate the length range */
- if (len > 0x3ffffff )
- {
- PRINT( "dev DMA: length of transfer too large: %d\n", len );
- return DMA_ERROR;
- }
-
- /* inappropriate to use a struct, but leave as is for now */
- curr.src_addr = source;
- curr.dest_addr = dest;
- curr.byte_cnt = len;
-
- (void)DMA_Poke_Desp( LOCAL, Global_eumbbar, channel, &cdar );
- cdar.snen = snoop;
- cdar.ctt = type;
-
- if ( ( stat = DMA_Bld_Desp( LOCAL, Global_eumbbar, channel, cdar ))
- != DMASUCCESS ||
- ( stat = DMA_Bld_Curr( LOCAL, Global_eumbbar, channel, curr ))
- != DMASUCCESS ||
- ( stat = DMA_Set_Mode( LOCAL, Global_eumbbar, channel, md ))
- != DMASUCCESS ||
- ( stat = DMA_Start( LOCAL, Global_eumbbar, channel ))
- != DMASUCCESS )
- {
- if ( stat == DMACHNBUSY )
- {
- PRINT( "dev DMA: channel %d busy.\n", channel );
- }
- else
- {
- PRINT( "dev DMA: invalid channel request.\n", channel );
- }
-
- return DMA_ERROR;
- }
-
-/* Since we are interested at the DMA performace right now,
- we are going to do as less as possible to burden the
- 603e core.
-
- if you have epic enabled or don't care the return from
- DMA operation, you can just return SUCCESS.
-
- if you don't have epic enabled and care the DMA result,
- you can use the polling method below.
-
- Note: I'll attempt to activate the code for handling polling.
- */
-
-#if 0
- /* if steering interrupt to local processor, let it handle results */
- if ( int_steer == DMA_INT_STEER_LOCAL )
- {
- return DMA_SUCCESS;
- }
-
- /* polling since interrupt goes to PCI */
- do
- {
- stat = DMA_ISR( Global_eumbbar, channel, dma_error_func,
- dma_error_func, dma_error_func, dma_error_func );
- }
- while ( stat == DMANOEVENT );
-#endif
-
- return DMA_SUCCESS;
-}
-
-/* DMA library internal functions */
-
-/**
- * Note:
- *
- * In all following functions, the host (KAHLUA) processor has a
- * choice of accessing on board local DMA (LOCAL),
- * or DMA on a distributed KAHLUA (REMOTE). In either case,
- * the caller shall pass the configured embedded utility memory
- * block base address relative to the DMA. If LOCAL DMA is used,
- * this parameter shall be EUMBBAR, if REMOTE is used, the
- * parameter shall be the corresponding PCSRBAR.
- **/
-
-/**************************************************************
- * function: DMA_Get_Stat
- *
- * description: return the content of status register of
- * the given DMA channel
- *
- * if error, reserved0 field all 1s.
- **************************************************************/
-static
-DMAStatus DMA_Get_Stat( LOCATION host, unsigned int eumbbar, unsigned int channel, DMA_SR *stat )
-{
- unsigned int tmp;
-
- if ( channel != 0 && channel != 1 || stat == 0 )
- {
- return DMAINVALID;
- }
-
- tmp = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_SR_REG] );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) stat = 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_SR_REG], tmp );
-#endif
-
- stat->reserved0 = ( tmp & 0xffffff00 ) >> 8;
- stat->lme = ( tmp & 0x00000080 ) >> 7;
- stat->reserved1 = ( tmp & 0x00000060 ) >> 5;
- stat->pe = ( tmp & 0x00000010 ) >> 4;
- stat->reserved2 = ( tmp & 0x00000008 ) >> 3;
- stat->cb = ( tmp & 0x00000004 ) >> 2;
- stat->eosi = ( tmp & 0x00000002 ) >> 1;
- stat->eocai = ( tmp & 0x00000001 );
-
- return DMASUCCESS;
-}
-
-/**************************************************************
- * function: DMA_Get_Mode
- *
- * description: return the content of mode register of the
- * given DMA channel
- *
- * if error, return DMAINVALID, otherwise return
- * DMASUCCESS
- **************************************************************/
-static
-DMAStatus DMA_Get_Mode( LOCATION host, unsigned eumbbar, unsigned int channel, DMA_MR *mode )
-{
- unsigned int tmp;
- if ( channel != 0 && channel != 1 || mode == 0 )
- {
- return DMAINVALID;
- }
-
- tmp = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_MR_REG] );
-
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) mode = 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_MR_REG], tmp );
-#endif
-
- mode->reserved0 = (tmp & 0xfff00000) >> 20;
- mode->irqs = (tmp & 0x00080000) >> 19;
- mode->pde = (tmp & 0x00040000) >> 18;
- mode->dahts = (tmp & 0x00030000) >> 16;
- mode->sahts = (tmp & 0x0000c000) >> 14;
- mode->dahe = (tmp & 0x00002000) >> 13;
- mode->sahe = (tmp & 0x00001000) >> 12;
- mode->prc = (tmp & 0x00000c00) >> 10;
- mode->reserved1 = (tmp & 0x00000200) >> 9;
- mode->eie = (tmp & 0x00000100) >> 8;
- mode->eotie = (tmp & 0x00000080) >> 7;
- mode->reserved2 = (tmp & 0x00000070) >> 4;
- mode->dl = (tmp & 0x00000008) >> 3;
- mode->ctm = (tmp & 0x00000004) >> 2;
- mode->cc = (tmp & 0x00000002) >> 1;
- mode->cs = (tmp & 0x00000001);
-
- return DMASUCCESS;
-}
-
-/**************************************************************
- * function: DMA_Set_Mode
- *
- * description: Set a new mode to a given DMA channel
- *
- * note: It is not a good idea of changing the DMA mode during
- * the middle of a transaction.
- **************************************************************/
-static
-DMAStatus DMA_Set_Mode( LOCATION host, unsigned eumbbar, unsigned int channel, DMA_MR mode )
-{
- unsigned int tmp;
- if ( channel != 0 && channel != 1 )
- {
- return DMAINVALID;
- }
-
- tmp = ( mode.reserved0 & 0xfff ) << 20;
- tmp |= ( ( mode.irqs & 0x1 ) << 19);
- tmp |= ( ( mode.pde & 0x1 ) << 18 );
- tmp |= ( ( mode.dahts & 0x3 ) << 16 );
- tmp |= ( ( mode.sahts & 0x3 ) << 14 );
- tmp |= ( ( mode.dahe & 0x1 ) << 13 );
- tmp |= ( ( mode.sahe & 0x1 ) << 12 );
- tmp |= ( ( mode.prc & 0x3 ) << 10 );
- tmp |= ( ( mode.reserved1 & 0x1 ) << 9 );
- tmp |= ( ( mode.eie & 0x1 ) << 8 );
- tmp |= ( ( mode.eotie & 0x1 ) << 7 );
- tmp |= ( ( mode.reserved2 & 0x7 ) << 4 );
- tmp |= ( ( mode.dl & 0x1 ) << 3 );
- tmp |= ( ( mode.ctm & 0x1 ) << 2 );
- tmp |= ( ( mode.cc & 0x1 ) << 1 ) ;
- tmp |= ( mode.cs & 0x1 );
-
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG + DMA_MR_REG], tmp );
- return DMASUCCESS;
-}
-
-/************************************************************
- * function: DMA_Start
- *
- * description: start a given DMA channel transaction
- * return DMASUCCESS if success otherwise return
- * DMAStatus value
- *
- * note: this function will clear DMA_MR(CC) first, then
- * set DMA_MR(CC).
- ***********************************************************/
-static
-DMAStatus DMA_Start( LOCATION host, unsigned int eumbbar, unsigned int channel )
-{
- DMA_SR stat;
- unsigned int mode;
-
- if ( channel != 0 && channel != 1 )
- {
- return DMAINVALID;
- }
-
- if ( DMA_Get_Stat( host, eumbbar, channel, &stat ) != DMASUCCESS )
- {
- return DMAINVALID;
- }
-
- if ( stat.cb == 1 )
- {
- /* DMA is not free */
- return DMACHNBUSY;
- }
-
- mode = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG + DMA_MR_REG] );
- /* clear DMA_MR(CS) */
- mode &= 0xfffffffe;
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG + DMA_MR_REG], mode );
-
- /* set DMA_MR(CS) */
- mode |= CS;
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG + DMA_MR_REG], mode );
- return DMASUCCESS;
-}
-
-/***********************************************************
- * function: DMA_Halt
- *
- * description: halt the current dma transaction on the specified
- * channel.
- * return DMASUCCESS if success otherwise return DMAINVALID
- *
- * note: if the specified DMA channel is idle, nothing happens
- *************************************************************/
-static
-DMAStatus DMA_Halt( LOCATION host, unsigned int eumbbar, unsigned int channel )
-{
- unsigned int mode;
- if ( channel != 0 && channel != 1 )
- {
- return DMAINVALID;
- }
-
- mode = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG + DMA_MR_REG]);
-
- /* clear DMA_MR(CS) */
- mode &= 0xfffffffe;
- store_runtime_reg(eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG + DMA_MR_REG], mode );
- return DMASUCCESS;
-}
-
-/*************************************************************
- * function: DMA_Chn_Cnt
- *
- * description: set the DMA_MR(CC) bit for a given channel
- * that is in chaining mode.
- * return DMASUCCESS if successfule, otherwise return
- * DMAINVALID.
- *
- * note: if the given channel is not in chaining mode, nothing
- * happen.
- *
- *************************************************************/
-static
-DMAStatus DMA_Chn_Cnt( LOCATION host, unsigned int eumbbar, unsigned int channel )
-{
- DMA_MR mode;
- if ( channel != 0 && channel != 1 )
- {
- return DMAINVALID;
- }
-
- if ( DMA_Get_Mode( host, eumbbar, channel, &mode ) != DMASUCCESS )
- {
- return DMAINVALID;
- }
-
- if ( mode.ctm == 0 )
- {
- /* either illegal mode or not chaining mode */
- return DMAINVALID;
- }
-
- mode.cc = 1;
- return DMA_Set_Mode( host, eumbbar, channel, mode );
-}
-
-/**************************************************************
- * function: DMA_Bld_Desp
- *
- * description: set current descriptor address register
- * according to the desp for a given channel
- *
- * if the given channel is busy return DMACHNBUSY
- * and no change made, otherwise return DMASUCCESS.
- *
- * note:
- **************************************************************/
-static
-DMAStatus DMA_Bld_Desp( LOCATION host,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CDAR desp )
-{
- DMA_SR status;
- unsigned int temp;
-
- if ( channel != 0 && channel != 1 )
- {
- /* channel number out of range */
- return DMAINVALID;
- }
-
- if ( DMA_Get_Stat( host, eumbbar, channel, &status ) != DMASUCCESS )
- {
- return DMAINVALID;
- }
-
- if ( status.cb == 1 )
- {
- /* channel busy */
- return DMACHNBUSY;
- }
-
- temp = ( desp.cda & 0x7ffffff ) << 5;
- temp |= (( desp.snen & 0x1 ) << 4 );
- temp |= (( desp.eosie & 0x1 ) << 3 );
- temp |= (( desp.ctt & 0x3 ) << 1 );
- temp |= ( desp.eotd & 0x1 );
-
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], temp );
-
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) cdar := 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], temp );
-#endif
-
- return DMASUCCESS;
-}
-
-/**************************************************************
- * function: DMA_Poke_Desp
- *
- * description: poke the current descriptor address register
- * for a given channel
- *
- * return DMASUCCESS if no error
- *
- * note: Due to the undeterministic parallellism of DMA operation,
- * the value returned by this function shall be taken as
- * the most recently used descriptor when the last time
- * DMA starts a chaining mode operation.
- **************************************************************/
-static
-DMAStatus DMA_Poke_Desp( LOCATION host,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CDAR *desp )
-{
- unsigned int cdar;
- if ( channel != 0 && channel != 1 || desp == 0 )
- {
- return DMAINVALID;
- }
-
- cdar = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG] );
-
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) cdar : 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], cdar );
-#endif
-
-
- desp->cda = ( cdar & 0xffffffe0 ) >> 5;
- desp->snen = ( cdar & 0x00000010 ) >> 4;
- desp->eosie = ( cdar & 0x00000008 ) >> 3;
- desp->ctt = ( cdar & 0x00000006 ) >> 1;
- desp->eotd = ( cdar & 0x00000001 );
-
- return DMASUCCESS;
-}
-
-/**************************************************************
- * function: DMA_Bld_Curr
- *
- * description: set current src, dest, byte count registers
- * according to the desp for a given channel
- * return DMASUCCESS if no error.
- *
- * note:
- **************************************************************/
-static
-DMAStatus DMA_Bld_Curr( LOCATION host,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CURR desp )
-{
- DMA_SR status;
- if ( channel != 0 && channel != 1 )
- {
- /* channel number out of range */
- return DMAINVALID;
- }
-
- if ( DMA_Get_Stat( host, eumbbar, channel, &status ) != DMASUCCESS )
- {
- return DMAINVALID;
- }
-
- if ( status.cb == 1 )
- {
- /* channel busy */
- return DMACHNBUSY;
- }
-
- desp.byte_cnt &= 0x03ffffff; /* upper 6-bits are 0s */
-
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_SAR_REG], desp.src_addr );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) src := 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], desp.src_addr );
-#endif
-
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_DAR_REG], desp.dest_addr );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) dest := 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], desp.dest_addr );
-#endif
-
- store_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_BCR_REG], desp.byte_cnt );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) count := 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], desp.byte_cnt );
-#endif
-
-
- return DMASUCCESS;
-
-}
-
-/**************************************************************
- * function: DMA_Poke_Curr
- *
- * description: poke the current src, dest, byte count registers
- * for a given channel.
- *
- * return DMASUCCESS if no error
- *
- * note: Due to the undeterministic parallelism, in chaining
- * mode, the value returned by this function shall
- * be taken as reference when the query is made rather
- * than the absolute snapshot when the value is returned.
- **************************************************************/
-static
-DMAStatus DMA_Poke_Curr( LOCATION host,
- unsigned int eumbbar,
- unsigned int channel,
- DMA_CURR* desp )
-{
- if ( channel != 0 && channel != 1 || desp == 0 )
- {
- return DMAINVALID;
- }
-
- desp->src_addr = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_SAR_REG] );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) src : 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], desp->src_addr );
-#endif
-
- desp->dest_addr = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_DAR_REG] );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) dest : 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], desp->dest_addr );
-#endif
-
- desp->byte_cnt = load_runtime_reg( eumbbar, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_BCR_REG] );
-#ifdef DMADBG0
- PRINT( "%s(%d): %s DMA %d (0x%08x) count : 0x%08x\n", __FILE__, __LINE__,
- ( host == LOCAL ? "local" : "remote" ), channel, dma_reg_tb[host][channel*NUM_DMA_REG+DMA_CDAR_REG], desp->byte_cnt );
-#endif
-
-
- return DMASUCCESS;
-}
-
-/*****************************************************************
- * function: dma_error_func
- *
- * description: display the error information
- *
- * note: This seems like a highly convoluted way to handle messages,
- * but I'll leave it as it was in device.c when I moved it into the
- * DMA library source.
- ****************************************************************/
-static
-DMAStatus dma_error_func( unsigned int eumbbar, unsigned int chn, DMAStatus err)
-{
- unsigned char *msg[] =
- {
- "Local Memory Error",
- "PCI Error",
- "Channel Busy",
- "End-of-Segment Interrupt",
- "End-of-Chain/Direct Interrupt",
- };
-
- if ( err >= DMALMERROR && err <= DMAEOCAINT )
- {
- PRINT( "DMA Status: channel %d %s\n", chn, msg[err-DMASUCCESS-1] );
- }
-
- return err;
-
-}
-
-/*************************************************************
- * function: DMA_ISR
- *
- * description: DMA interrupt service routine
- * return DMAStatus value based on
- * the status
- *
- *************************************************************/
-static
-DMAStatus DMA_ISR( unsigned int eumbbar,
- unsigned int channel,
- DMAStatus (*lme_func)( unsigned int, unsigned int, DMAStatus ),
- DMAStatus (*pe_func) ( unsigned int, unsigned int, DMAStatus ),
- DMAStatus (*eosi_func)( unsigned int, unsigned int, DMAStatus ),
- DMAStatus (*eocai_func)(unsigned int, unsigned int, DMAStatus ))
-{
-
- DMA_SR stat;
- DMAStatus rval = DMANOEVENT;
- unsigned int temp;
-
- if ( channel != 0 && channel != 1 )
- {
- return DMAINVALID;
- }
-
- if ( DMA_Get_Stat( LOCAL, eumbbar, channel, &stat ) != DMASUCCESS )
- {
- return DMAINVALID;
- }
-
- if ( stat.lme == 1 )
- {
- /* local memory error */
- rval = DMALMERROR;
- if ( lme_func != 0 )
- {
- rval = (*lme_func)(eumbbar, channel, DMALMERROR );
- }
-
- }
- else if ( stat.pe == 1 )
- {
- /* PCI error */
- rval = DMAPERROR;
- if ( pe_func != 0 )
- {
- rval = (*pe_func)(eumbbar, channel, DMAPERROR );
- }
-
- }
- else if ( stat.eosi == 1 )
- {
- /* end-of-segment interrupt */
- rval = DMAEOSINT;
- if ( eosi_func != 0 )
- {
- rval = (*eosi_func)(eumbbar, channel, DMAEOSINT );
- }
- }
- else
- {
- /* End-of-chain/direct interrupt */
- rval = DMAEOCAINT;
- if ( eocai_func != 0 )
- {
- rval = (*eocai_func)(eumbbar, channel, DMAEOCAINT );
- }
- }
-
- temp = ( stat.reserved0 & 0xffffff ) << 8;
- temp |= ( ( stat.lme & 0x1 ) << 7 ); /* write one to clear */
- temp |= ( ( stat.reserved1 & 0x3 ) << 5 );
- temp |= ( ( stat.pe & 0x1 ) << 4 ); /* write one to clear */
- temp |= ( ( stat.reserved2 & 0x1 ) << 3 );
- temp |= ( ( stat.cb & 0x1 ) << 2 ); /* write one to clear */
- temp |= ( ( stat.eosi & 0x1 ) << 1 ); /* write one to clear */
- temp |= ( stat.eocai & 0x1 ); /* write one to clear */
-
- store_runtime_reg( eumbbar, dma_reg_tb[LOCAL][channel*NUM_DMA_REG + DMA_SR_REG], temp );
-
-#ifdef DMADBG0
- PRINT( "%s(%d): DMA channel %d SR := 0x%08x\n", __FILE__, __LINE__, channel, temp );
-#endif
-
- return rval;
-}
+++ /dev/null
-/**************************************
- *
- * copyright @ Motorola, 1999
- *
- **************************************/
-
-/**********************************************************
- * function: load_runtime_reg
- *
- * input: r3 - value of eumbbar
- * r4 - register offset in embedded utility space
- *
- * output: r3 - register content
- **********************************************************/
- .text
- .align 2
- .global load_runtime_reg
-
-load_runtime_reg:
-
- lwbrx r3,r4,r3
- sync
-
- bclr 20, 0
-
-/****************************************************************
- * function: store_runtime_reg
- *
- * input: r3 - value of eumbbar
- * r4 - register offset in embedded utility space
- * r5 - new value to be stored
- *
- ****************************************************************/
- .text
- .align 2
- .global store_runtime_reg
-store_runtime_reg:
-
- stwbrx r5, r4, r3
- sync
-
- bclr 20,0
+++ /dev/null
-#ifndef DMA_EXPORT_H
-#define DMA_EXPORT_H
-
-/****************************************************
- * $Id:
- *
- * Copyright Motorola 1999
- *
- * $Log:
- *
- ****************************************************/
-
-/* These are the defined return values for the DMA_* functions.
- * Any non-zero value indicates failure. Failure modes can be added for
- * more detailed error reporting.
- */
-typedef enum _dma_status
-{
- DMA_SUCCESS = 0,
- DMA_ERROR,
-} DMA_Status;
-
-/* These are the defined channel transfer types. */
-typedef enum _dma_transfer_types
-{
- DMA_M2M = 0, /* local memory to local memory */
- DMA_M2P = 1, /* local memory to PCI */
- DMA_P2M = 2, /* PCI to local memory */
- DMA_P2P = 3, /* PCI to PCI */
-} DMA_TRANSFER_TYPE;
-
-typedef enum _dma_interrupt_steer
-{
- DMA_INT_STEER_LOCAL = 0, /* steer DMA int to local processor */
- DMA_INT_STEER_PCI = 1, /* steer DMA int to PCI bus through INTA_ */
-} DMA_INTERRUPT_STEER;
-
-typedef enum _dma_channel
-{
- DMA_CHN_0 = 0, /* kahlua has two dma channels: 0 and 1 */
- DMA_CHN_1 = 1,
-} DMA_CHANNEL;
-
-typedef enum _dma_snoop_mode
-{
- DMA_SNOOP_DISABLE = 0,
- DMA_SNOOP_ENABLE = 1,
-} DMA_SNOOP_MODE;
-
-/******************** App. API ********************
- * The application API is for user level application
- * to use the functionality provided by DMA driver.
- * This is a "generic" DMA interface, it should contain
- * nothing specific to the Kahlua implementation.
- * Only the generic functions are exported by the library.
- *
- * Note: Its App.s responsibility to swap the data
- * byte. In our API, we currently transfer whatever
- * we are given - Big/Little Endian. This could
- * become part of the DMA config, though.
- **************************************************/
-
-
-/* Initialize DMA unit with the following:
- * optional pointer to application layer print function
- *
- * These parameters may be added:
- * ???
- * Interrupt enables, modes, etc. are set for each transfer.
- *
- * This function must be called before DMA unit can be used.
- */
-extern DMA_Status DMA_Initialize(
- int (*app_print_function)(char *,...)); /* pointer to optional "printf"
- * provided by application
- */
-
-/* Perform the DMA transfer, only direct mode is currently implemented.
- * At this point, I think it would be better to define a different
- * function for chaining mode.
- * Also, I'm not sure if it is appropriate to have the "generic" API
- * accept snoop and int_steer parameters. The DINK user interface allows
- * them, so for now I'll leave them.
- *
- * int_steer controls DMA interrupt steering to PCI or local processor
- * type is the type of transfer: M2M, M2P, P2M, P2P
- * source is the source address of the data
- * dest is the destination address of the data
- * len is the length of data to transfer
- * channel is the DMA channel to use for the transfer
- * snoop is the snoop enable control
- */
-extern DMA_Status DMA_direct_transfer( DMA_INTERRUPT_STEER int_steer,
- DMA_TRANSFER_TYPE type,
- unsigned int source,
- unsigned int dest,
- unsigned int len,
- DMA_CHANNEL channel,
- DMA_SNOOP_MODE snoop);
-#endif
+++ /dev/null
-#ifndef DMA_EXPORT_H
-#define DMA_EXPORT_H
-
-/****************************************************
- * $Id:
- *
- * Copyright Motorola 1999
- *
- * $Log:
- *
- ****************************************************/
-
-/* These are the defined return values for the DMA_* functions.
- * Any non-zero value indicates failure. Failure modes can be added for
- * more detailed error reporting.
- */
-typedef enum _dma_status
-{
- DMA_SUCCESS = 0,
- DMA_ERROR,
-} DMA_Status;
-
-/* These are the defined channel transfer types. */
-typedef enum _dma_transfer_types
-{
- DMA_M2M = 0, /* local memory to local memory */
- DMA_M2P = 1, /* local memory to PCI */
- DMA_P2M = 2, /* PCI to local memory */
- DMA_P2P = 3, /* PCI to PCI */
-} DMA_TRANSFER_TYPE;
-
-typedef enum _dma_interrupt_steer
-{
- DMA_INT_STEER_LOCAL = 0, /* steer DMA int to local processor */
- DMA_INT_STEER_PCI = 1, /* steer DMA int to PCI bus through INTA_ */
-} DMA_INTERRUPT_STEER;
-
-typedef enum _dma_channel
-{
- DMA_CHN_0 = 0, /* kahlua has two dma channels: 0 and 1 */
- DMA_CHN_1 = 1,
-} DMA_CHANNEL;
-
-typedef enum _dma_snoop_mode
-{
- DMA_SNOOP_DISABLE = 0,
- DMA_SNOOP_ENABLE = 1,
-} DMA_SNOOP_MODE;
-
-/******************** App. API ********************
- * The application API is for user level application
- * to use the functionality provided by DMA driver.
- * This is a "generic" DMA interface, it should contain
- * nothing specific to the Kahlua implementation.
- * Only the generic functions are exported by the library.
- *
- * Note: Its App.s responsibility to swap the data
- * byte. In our API, we currently transfer whatever
- * we are given - Big/Little Endian. This could
- * become part of the DMA config, though.
- **************************************************/
-
-
-/* Initialize DMA unit with the following:
- * optional pointer to application layer print function
- *
- * These parameters may be added:
- * ???
- * Interrupt enables, modes, etc. are set for each transfer.
- *
- * This function must be called before DMA unit can be used.
- */
-extern DMA_Status DMA_Initialize(
- int (*app_print_function)(char *,...)); /* pointer to optional "printf"
- * provided by application
- */
-
-/* Perform the DMA transfer, only direct mode is currently implemented.
- * At this point, I think it would be better to define a different
- * function for chaining mode.
- * Also, I'm not sure if it is appropriate to have the "generic" API
- * accept snoop and int_steer parameters. The DINK user interface allows
- * them, so for now I'll leave them.
- *
- * int_steer controls DMA interrupt steering to PCI or local processor
- * type is the type of transfer: M2M, M2P, P2M, P2P
- * source is the source address of the data
- * dest is the destination address of the data
- * len is the length of data to transfer
- * channel is the DMA channel to use for the transfer
- * snoop is the snoop enable control
- */
-extern DMA_Status DMA_direct_transfer( DMA_INTERRUPT_STEER int_steer,
- DMA_TRANSFER_TYPE type,
- unsigned int source,
- unsigned int dest,
- unsigned int len,
- DMA_CHANNEL channel,
- DMA_SNOOP_MODE snoop);
-#endif
+++ /dev/null
-#ifndef I2O_H
-#define I2O_H
-/*********************************************************
- *
- * copyright @ Motorola, 1999
- *********************************************************/
-
-#define I2O_REG_OFFSET 0x0004
-
-#define PCI_CFG_CLA 0x0B
-#define PCI_CFG_SCL 0x0A
-#define PCI_CFG_PIC 0x09
-
-#define I2O_IMR0 0x0050
-#define I2O_IMR1 0x0054
-#define I2O_OMR0 0x0058
-#define I2O_OMR1 0x005C
-
-#define I2O_ODBR 0x0060
-#define I2O_IDBR 0x0068
-
-#define I2O_OMISR 0x0030
-#define I2O_OMIMR 0x0034
-#define I2O_IMISR 0x0100
-#define I2O_IMIMR 0x0104
-
-/* accessable to PCI master but local processor */
-#define I2O_IFQPR 0x0040
-#define I2O_OFQPR 0x0044
-
-/* accessable to local processor */
-#define I2O_IFHPR 0x0120
-#define I2O_IFTPR 0x0128
-#define I2O_IPHPR 0x0130
-#define I2O_IPTPR 0x0138
-#define I2O_OFHPR 0x0140
-#define I2O_OFTPR 0x0148
-#define I2O_OPHPR 0x0150
-#define I2O_OPTPR 0x0158
-#define I2O_MUCR 0x0164
-#define I2O_QBAR 0x0170
-
-#define I2O_NUM_MSG 2
-
-typedef enum _i2o_status
-{
- I2OSUCCESS = 0,
- I2OINVALID,
- I2OMSGINVALID,
- I2ODBINVALID,
- I2OQUEINVALID,
- I2OQUEEMPTY,
- I2OQUEFULL,
- I2ONOEVENT,
-} I2OSTATUS;
-
-typedef enum _queue_size
-{
- QSIZE_4K = 0x02,
- QSIZE_8K = 0x04,
- QSIZE_16K = 0x08,
- QSIZE_32K = 0x10,
- QSIZe_64K = 0x20,
-} QUEUE_SIZE;
-
-typedef enum _location
-{
- LOCAL = 0, /* used by local processor to access its own on board device,
- local processor's eumbbar is required */
- REMOTE, /* used by PCI master to access the devices on its PCI device,
- device's pcsrbar is required */
-} LOCATION;
-
-/* door bell */
-typedef enum _i2o_in_db
-{
- IN_DB = 1,
- MC, /* machine check */
-} I2O_IN_DB;
-
-/* I2O PCI configuration identification */
-typedef struct _i2o_iop
-{
- unsigned int base_class : 8;
- unsigned int sub_class : 8;
- unsigned int prg_code : 8;
-} I2OIOP;
-
-/* I2O Outbound Message Interrupt Status Register */
-typedef struct _i2o_om_stat
-{
- unsigned int rsvd0 : 26;
- unsigned int opqi : 1;
- unsigned int rsvd1 : 1;
- unsigned int odi : 1;
- unsigned int rsvd2 : 1;
- unsigned int om1i : 1;
- unsigned int om0i : 1;
-} I2OOMSTAT;
-
-/* I2O inbound Message Interrupt Status Register */
-typedef struct _i2o_im_stat
-{
- unsigned int rsvd0 : 23;
- unsigned int ofoi : 1;
- unsigned int ipoi : 1;
- unsigned int rsvd1 : 1;
- unsigned int ipqi : 1;
- unsigned int mci : 1;
- unsigned int idi : 1;
- unsigned int rsvd2 : 1;
- unsigned int im1i : 1;
- unsigned int im0i : 1;
-} I2OIMSTAT;
-
-/**
- Enable the interrupt associated with in/out bound msg
-
- Inbound message interrupt generated by PCI master and serviced by local processor
- local processor needs to enable its inbound interrupts it wants to handle (LOCAL)
-
- Outbound message interrupt generated by local processor and serviced by PCI master
- PCI master needs to enable the devices' outbound interrupts it wants to handle (REMOTE)
- **/
-extern I2OSTATUS I2OMsgEnable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned char n ); /* b'1' - msg 0
- * b'10'- msg 1
- * b'11'- both
- */
-
-/**
- Disable the interrupt associated with in/out bound msg
-
- local processor needs to disable its inbound interrupts it is not interested (LOCAL)
-
- PCI master needs to disable outbound interrupts of devices it is not interested (REMOTE)
- **/
-extern I2OSTATUS I2OMsgDisable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned char n ); /* b'1' - msg 0
- * b'10'- msg 1
- * b'11'- both
- */
-
-/**
- Read the msg register either from local inbound msg 0/1,
- or an outbound msg 0/1 of devices.
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, outbound msg of the device is read.
- Otherwise local inbound msg is read.
- **/
-extern I2OSTATUS I2OMsgGet ( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /*pcsrbar/eumbbar */
- unsigned int n, /* 0 or 1 */
- unsigned int *msg );
-
-/**
- Write to nth Msg register either on local outbound msg 0/1,
- or aninbound msg 0/1 of devices
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, inbound msg on the device is written.
- Otherwise local outbound msg is written.
- **/
-extern I2OSTATUS I2OMsgPost( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /*pcsrbar/eumbbar */
- unsigned int n, /* 0 or 1 */
- unsigned int msg );
-
-/**
- Enable the In/Out DoorBell Interrupt
-
- InDoorBell interrupt is generated by PCI master and serviced by local processor
- local processor needs to enable its inbound doorbell interrupts it wants to handle
-
- OutDoorbell interrupt is generated by local processor and serviced by PCI master
- PCI master needs to enable outbound doorbell interrupts of the devices it wants to handle
- **/
-extern I2OSTATUS I2ODBEnable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int in_db );/* when LOCAL, I2O_IN_DB, MC, I2O_IN_DB|MC */
-
-/**
- Disable the In/Out DoorBell Interrupt
-
- local processor needs to disable its inbound doorbell interrupts it is not interested
-
- PCI master needs to disable outbound doorbell interrupts of devices it is not interested
-
- **/
-extern I2OSTATUS I2ODBDisable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int in_db ); /* when LOCAL, I2O_IN_DB, MC, I2O_IN_DB|MC */
-
-/**
- Read a local indoorbell register, or an outdoorbell of devices.
- Reading a doorbell register, the register will be cleared.
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, outdoorbell register on the device is read.
- Otherwise local in doorbell is read
- **/
-extern unsigned int I2ODBGet( LOCATION, /* REMOTE/LOCAL */
- unsigned int base); /* pcsrbar/eumbbar */
-
-/**
- Write to a local outdoorbell register, or an indoorbell register of devices.
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, in doorbell register on the device is written.
- Otherwise local out doorbell is written
- **/
-extern void I2ODBPost( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int msg ); /* in / out */
-
-/**
- Read the outbound msg unit interrupt status of devices. Reading an interrupt status register,
- the register will be cleared.
-
- The outbound interrupt status is AND with the outbound
- interrupt mask. The result is returned.
-
- PCI master must pass the pcsrbar to the function.
- **/
-extern I2OSTATUS I2OOutMsgStatGet( unsigned int pcsrbar, I2OOMSTAT * );
-
-/**
- Read the inbound msg unit interrupt status. Reading an interrupt status register,
- the register will be cleared.
-
- The inbound interrupt status is AND with the inbound
- interrupt mask. The result is returned.
-
- Local process must pass its eumbbar to the function.
-**/
-extern I2OSTATUS I2OInMsgStatGet( unsigned int eumbbar, I2OIMSTAT * );
-
-/**
- Configure the I2O FIFO, including QBAR, IFHPR/IFTPR,IPHPR/IPTPR,OFHPR/OFTPR, OPHPR/OPTPR,
- MUCR.
- **/
-extern I2OSTATUS I2OFIFOInit( unsigned int eumbbar,
- QUEUE_SIZE,
- unsigned int qba);/* queue base address that must be aligned at 1M */
-/**
- Enable the circular queue
- **/
-extern I2OSTATUS I2OFIFOEnable( unsigned int eumbbar );
-
-/**
- Disable the circular queue
- **/
-extern void I2OFIFODisable( unsigned int eumbbar );
-
-/**
- Enable the circular queue interrupt
- PCI master enables outbound FIFO interrupt of device
- Device enables its inbound FIFO interrupt
- **/
-extern void I2OFIFOIntEnable( LOCATION, unsigned int base );
-
-/**
- Disable the circular queue interrupt
- PCI master disables outbound FIFO interrupt of device
- Device disables its inbound FIFO interrupt
- **/
-extern void I2OFIFOIntDisable( LOCATION, unsigned int base );
-
-/**
- Enable the circular queue overflow interrupt
- **/
-extern void I2OFIFOOverflowIntEnable( unsigned int eumbbar );
-
-/**
- Disable the circular queue overflow interrupt
- **/
-extern void I2OFIFOOverflowIntDisable( unsigned int eumbbar );
-
-/**
- Allocate a free msg frame from free FIFO.
-
- PCI Master allocates a free msg frame through inbound queue port of device(IFQPR)
- while local processor allocates a free msg frame from outbound free queue(OFTPR)
-
- Unless both free queues are initialized, allocating a free MF will return 0xffffffff
- **/
-extern I2OSTATUS I2OFIFOAlloc( LOCATION,
- unsigned int base,
- void **pMsg);
-/**
- Free a used msg frame back to free queue
- PCI Master frees a MFA through outbound queue port of device(OFQPR)
- while local processor frees a MFA into its inbound free queue(IFHPR)
-
- Used msg frame does not need to be recycled in the order they
- read
-
- This function has to be called by PCI master to initialize Inbound free queue
- and by device to initialize Outbound free queue before I2OFIFOAlloc can be used.
- **/
-extern I2OSTATUS I2OFIFOFree( LOCATION,
- unsigned int base,
- void *pMsg );
-
-/**
- Post a msg into FIFO
- PCI Master posts a msg through inbound queue port of device(IFQPR)
- while local processor post a msg into its outbound post queue(OPHPR)
-
- The total number of msg must be less than the max size of the queue
- Otherwise queue overflow interrupt will assert.
- **/
-extern I2OSTATUS I2OFIFOPost( LOCATION,
- unsigned int base,
- void *pMsg );
-
-/**
- Read a msg from FIFO
- PCI Master reads a msg through outbound queue port of device(OFQPR)
- while local processor reads a msg from its inbound post queue(IPTPR)
- **/
-extern I2OSTATUS I2OFIFOGet( LOCATION,
- unsigned int base,
- void **pMsg );
-
-/**
- Get the I2O PCI configuration identification register
- **/
-extern I2OSTATUS I2OPCIConfigGet( LOCATION,
- unsigned int base,
- I2OIOP *);
-
-#endif
+++ /dev/null
-##########################################################################
-#
-# Copyright Motorola, Inc. 1997
-# ALL RIGHTS RESERVED
-#
-# You are hereby granted a copyright license to use, modify, and
-# distribute the SOFTWARE so long as this entire notice is retained
-# without alteration in any modified and/or redistributed versions,
-# and that such modified versions are clearly identified as such.
-# No licenses are granted by implication, estoppel or otherwise under
-# any patents or trademarks of Motorola, Inc.
-#
-# The SOFTWARE is provided on an "AS IS" basis and without warranty.
-# To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS
-# ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED
-# WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-# PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH
-# REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS
-# THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS.
-#
-# To the maximum extent permitted by applicable law, IN NO EVENT SHALL
-# MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
-# (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF
-# BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
-# INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR
-# INABILITY TO USE THE SOFTWARE.
-#
-############################################################################
-TARGET = libi2o.a
-
-#DEBUG = -g
-DEBUG =
-LST = -Hanno -S
-OPTIM =
-CC = /risc/tools/pkgs/metaware/bin/hcppc
-CFLAGS = -Hnocopyr -c -Hsds -Hon=Char_default_unsigned -Hon=Char_is_rep -I../inc -I/risc/tools/pkgs/metaware/inc
-CCobj = $(CC) $(CFLAGS) $(DEBUG) $(OPTIM)
-PREP = $(CC) $(CFLAGS) -P
-
-# Assembler used to build the .s files (for the board version)
-
-ASOPT = -big_si -c
-ASDEBUG = -l -fm
-AS = /risc/tools/pkgs/metaware/bin/asppc
-
-# Linker to bring .o files together into an executable.
-
-LKOPT = -Bbase=0 -Qn -q -r
-LKCMD =
-LINK = /risc/tools/pkgs/metaware/bin/ldppc $(LKCMD) $(LKOPT)
-
-# DOS Utilities
-
-DEL = rm
-COPY = cp
-LIST = ls
-
-OBJECTS = i2o1.o i2o2.o
-
-all: $(TARGET)
-
-$(TARGET): $(OBJECTS)
- $(LINK) $(OBJECTS) -o $@
-
-objects: i2o1.o
-
-clean:
- $(DEL) -f *.o *.i *.map *.lst $(TARGET) $(OBJECTS)
-
-.s.o:
- $(DEL) -f $*.i
- $(PREP) -Hasmcpp $<
- $(AS) $(ASOPT) $*.i
-# $(AS) $(ASOPT) $(ASDEBUG) $*.i > $*.lst
-
-.c.o:
- $(CCobj) $<
-
-.c.s:
- $(CCobj) $(LST) $<
-
-i2o1.o: i2o.h i2o1.c
-
-i2o2.o: i2o.h i2o2.s
+++ /dev/null
-##########################################################################
-#
-# makefile_pc for use with PC mksnt tools dink32/drivers/i2o
-#
-# Copyright Motorola, Inc. 1997
-# ALL RIGHTS RESERVED
-#
-# You are hereby granted a copyright license to use, modify, and
-# distribute the SOFTWARE so long as this entire notice is retained
-# without alteration in any modified and/or redistributed versions,
-# and that such modified versions are clearly identified as such.
-# No licenses are granted by implication, estoppel or otherwise under
-# any patents or trademarks of Motorola, Inc.
-#
-# The SOFTWARE is provided on an "AS IS" basis and without warranty.
-# To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS
-# ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED
-# WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-# PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH
-# REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS
-# THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS.
-#
-# To the maximum extent permitted by applicable law, IN NO EVENT SHALL
-# MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
-# (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF
-# BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
-# INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR
-# INABILITY TO USE THE SOFTWARE.
-#
-############################################################################
-TARGET = libi2o.a
-
-#DEBUG = -g
-DEBUG =
-LST = -Hanno -S
-OPTIM =
-CC = m:/old_tools/tools/hcppc/bin/hcppc
-CFLAGS = -Hnocopyr -c -Hsds -Hon=Char_default_unsigned -Hon=Char_is_rep -I../inc -I/risc/tools/pkgs/metaware/inc
-CCobj = $(CC) $(CFLAGS) $(DEBUG) $(OPTIM)
-PREP = $(CC) $(CFLAGS) -P
-
-# Assembler used to build the .s files (for the board version)
-
-ASOPT = -big_si -c
-ASDEBUG = -l -fm
-AS = m:/old_tools/tools/hcppc/bin/asppc
-
-# Linker to bring .o files together into an executable.
-
-LKOPT = -Bbase=0 -Qn -q -r
-LKCMD =
-LINK = m:/old_tools/tools/hcppc/bin/ldppc $(LKCMD) $(LKOPT)
-
-# DOS Utilities
-
-DEL = rm
-COPY = cp
-LIST = ls
-
-OBJECTS = i2o1.o i2o2.o
-
-all: $(TARGET)
-
-$(TARGET): $(OBJECTS)
- $(LINK) $(OBJECTS) -o $@
-
-objects: i2o1.o
-
-clean:
- $(DEL) -f *.o *.i *.map *.lst $(TARGET) $(OBJECTS)
-
-.s.o:
- $(DEL) -f $*.i
- $(PREP) -Hasmcpp $<
- $(AS) $(ASOPT) $*.i
-# $(AS) $(ASOPT) $(ASDEBUG) $*.i > $*.lst
-
-.c.o:
- $(CCobj) $<
-
-.c.s:
- $(CCobj) $(LST) $<
-
-i2o1.o: i2o.h i2o1.c
- $(CCobj) $<
-
-i2o2.o: i2o.h i2o2.s
- $(DEL) -f $*.i
- $(PREP) -Hasmcpp $<
- $(AS) $(ASOPT) $*.i
+++ /dev/null
-#ifndef I2O_H
-#define I2O_H
-/*********************************************************
- *
- * copyright @ Motorola, 1999
- *
- *********************************************************/
-
-#define I2O_REG_OFFSET 0x0004
-
-#define PCI_CFG_CLA 0x0B
-#define PCI_CFG_SCL 0x0A
-#define PCI_CFG_PIC 0x09
-
-#define I2O_IMR0 0x0050
-#define I2O_IMR1 0x0054
-#define I2O_OMR0 0x0058
-#define I2O_OMR1 0x005C
-
-#define I2O_ODBR 0x0060
-#define I2O_IDBR 0x0068
-
-#define I2O_OMISR 0x0030
-#define I2O_OMIMR 0x0034
-#define I2O_IMISR 0x0100
-#define I2O_IMIMR 0x0104
-
-/* accessable to PCI master but local processor */
-#define I2O_IFQPR 0x0040
-#define I2O_OFQPR 0x0044
-
-/* accessable to local processor */
-#define I2O_IFHPR 0x0120
-#define I2O_IFTPR 0x0128
-#define I2O_IPHPR 0x0130
-#define I2O_IPTPR 0x0138
-#define I2O_OFHPR 0x0140
-#define I2O_OFTPR 0x0148
-#define I2O_OPHPR 0x0150
-#define I2O_OPTPR 0x0158
-#define I2O_MUCR 0x0164
-#define I2O_QBAR 0x0170
-
-#define I2O_NUM_MSG 2
-
-typedef enum _i2o_status
-{
- I2OSUCCESS = 0,
- I2OINVALID,
- I2OMSGINVALID,
- I2ODBINVALID,
- I2OQUEINVALID,
- I2OQUEEMPTY,
- I2OQUEFULL,
- I2ONOEVENT,
-} I2OSTATUS;
-
-typedef enum _queue_size
-{
- QSIZE_4K = 0x02,
- QSIZE_8K = 0x04,
- QSIZE_16K = 0x08,
- QSIZE_32K = 0x10,
- QSIZe_64K = 0x20,
-} QUEUE_SIZE;
-
-typedef enum _location
-{
- LOCAL = 0, /* used by local processor to access its own on board device,
- local processor's eumbbar is required */
- REMOTE, /* used by PCI master to access the devices on its PCI device,
- device's pcsrbar is required */
-} LOCATION;
-
-/* door bell */
-typedef enum _i2o_in_db
-{
- IN_DB = 1,
- MC, /* machine check */
-} I2O_IN_DB;
-
-/* I2O PCI configuration identification */
-typedef struct _i2o_iop
-{
- unsigned int base_class : 8;
- unsigned int sub_class : 8;
- unsigned int prg_code : 8;
-} I2OIOP;
-
-/* I2O Outbound Message Interrupt Status Register */
-typedef struct _i2o_om_stat
-{
- unsigned int rsvd0 : 26;
- unsigned int opqi : 1;
- unsigned int rsvd1 : 1;
- unsigned int odi : 1;
- unsigned int rsvd2 : 1;
- unsigned int om1i : 1;
- unsigned int om0i : 1;
-} I2OOMSTAT;
-
-/* I2O inbound Message Interrupt Status Register */
-typedef struct _i2o_im_stat
-{
- unsigned int rsvd0 : 23;
- unsigned int ofoi : 1;
- unsigned int ipoi : 1;
- unsigned int rsvd1 : 1;
- unsigned int ipqi : 1;
- unsigned int mci : 1;
- unsigned int idi : 1;
- unsigned int rsvd2 : 1;
- unsigned int im1i : 1;
- unsigned int im0i : 1;
-} I2OIMSTAT;
-
-/**
- Enable the interrupt associated with in/out bound msg
-
- Inbound message interrupt generated by PCI master and serviced by local processor
- local processor needs to enable its inbound interrupts it wants to handle (LOCAL)
-
- Outbound message interrupt generated by local processor and serviced by PCI master
- PCI master needs to enable the devices' outbound interrupts it wants to handle (REMOTE)
- **/
-extern I2OSTATUS I2OMsgEnable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned char n ); /* b'1' - msg 0
- * b'10'- msg 1
- * b'11'- both
- */
-
-/**
- Disable the interrupt associated with in/out bound msg
-
- local processor needs to disable its inbound interrupts it is not interested (LOCAL)
-
- PCI master needs to disable outbound interrupts of devices it is not interested (REMOTE)
- **/
-extern I2OSTATUS I2OMsgDisable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned char n ); /* b'1' - msg 0
- * b'10'- msg 1
- * b'11'- both
- */
-
-/**
- Read the msg register either from local inbound msg 0/1,
- or an outbound msg 0/1 of devices.
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, outbound msg of the device is read.
- Otherwise local inbound msg is read.
- **/
-extern I2OSTATUS I2OMsgGet ( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /*pcsrbar/eumbbar */
- unsigned int n, /* 0 or 1 */
- unsigned int *msg );
-
-/**
- Write to nth Msg register either on local outbound msg 0/1,
- or aninbound msg 0/1 of devices
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, inbound msg on the device is written.
- Otherwise local outbound msg is written.
- **/
-extern I2OSTATUS I2OMsgPost( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /*pcsrbar/eumbbar */
- unsigned int n, /* 0 or 1 */
- unsigned int msg );
-
-/**
- Enable the In/Out DoorBell Interrupt
-
- InDoorBell interrupt is generated by PCI master and serviced by local processor
- local processor needs to enable its inbound doorbell interrupts it wants to handle
-
- OutDoorbell interrupt is generated by local processor and serviced by PCI master
- PCI master needs to enable outbound doorbell interrupts of the devices it wants to handle
- **/
-extern I2OSTATUS I2ODBEnable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int in_db );/* when LOCAL, I2O_IN_DB, MC, I2O_IN_DB|MC */
-
-/**
- Disable the In/Out DoorBell Interrupt
-
- local processor needs to disable its inbound doorbell interrupts it is not interested
-
- PCI master needs to disable outbound doorbell interrupts of devices it is not interested
-
- **/
-extern I2OSTATUS I2ODBDisable( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int in_db ); /* when LOCAL, I2O_IN_DB, MC, I2O_IN_DB|MC */
-
-/**
- Read a local indoorbell register, or an outdoorbell of devices.
- Reading a doorbell register, the register will be cleared.
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, outdoorbell register on the device is read.
- Otherwise local in doorbell is read
- **/
-extern unsigned int I2ODBGet( LOCATION, /* REMOTE/LOCAL */
- unsigned int base); /* pcsrbar/eumbbar */
-
-/**
- Write to a local outdoorbell register, or an indoorbell register of devices.
-
- If it is not local, pcsrbar must be passed to the function.
- Otherwise eumbbar is passed.
-
- If it is remote, in doorbell register on the device is written.
- Otherwise local out doorbell is written
- **/
-extern void I2ODBPost( LOCATION, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int msg ); /* in / out */
-
-/**
- Read the outbound msg unit interrupt status of devices. Reading an interrupt status register,
- the register will be cleared.
-
- The outbound interrupt status is AND with the outbound
- interrupt mask. The result is returned.
-
- PCI master must pass the pcsrbar to the function.
- **/
-extern I2OSTATUS I2OOutMsgStatGet( unsigned int pcsrbar, I2OOMSTAT * );
-
-/**
- Read the inbound msg unit interrupt status. Reading an interrupt status register,
- the register will be cleared.
-
- The inbound interrupt status is AND with the inbound
- interrupt mask. The result is returned.
-
- Local process must pass its eumbbar to the function.
-**/
-extern I2OSTATUS I2OInMsgStatGet( unsigned int eumbbar, I2OIMSTAT * );
-
-/**
- Configure the I2O FIFO, including QBAR, IFHPR/IFTPR,IPHPR/IPTPR,OFHPR/OFTPR, OPHPR/OPTPR,
- MUCR.
- **/
-extern I2OSTATUS I2OFIFOInit( unsigned int eumbbar,
- QUEUE_SIZE,
- unsigned int qba);/* queue base address that must be aligned at 1M */
-/**
- Enable the circular queue
- **/
-extern I2OSTATUS I2OFIFOEnable( unsigned int eumbbar );
-
-/**
- Disable the circular queue
- **/
-extern void I2OFIFODisable( unsigned int eumbbar );
-
-/**
- Enable the circular queue interrupt
- PCI master enables outbound FIFO interrupt of device
- Device enables its inbound FIFO interrupt
- **/
-extern void I2OFIFOIntEnable( LOCATION, unsigned int base );
-
-/**
- Disable the circular queue interrupt
- PCI master disables outbound FIFO interrupt of device
- Device disables its inbound FIFO interrupt
- **/
-extern void I2OFIFOIntDisable( LOCATION, unsigned int base );
-
-/**
- Enable the circular queue overflow interrupt
- **/
-extern void I2OFIFOOverflowIntEnable( unsigned int eumbbar );
-
-/**
- Disable the circular queue overflow interrupt
- **/
-extern void I2OFIFOOverflowIntDisable( unsigned int eumbbar );
-
-/**
- Allocate a free msg frame from free FIFO.
-
- PCI Master allocates a free msg frame through inbound queue port of device(IFQPR)
- while local processor allocates a free msg frame from outbound free queue(OFTPR)
-
- Unless both free queues are initialized, allocating a free MF will return 0xffffffff
- **/
-extern I2OSTATUS I2OFIFOAlloc( LOCATION,
- unsigned int base,
- void **pMsg);
-/**
- Free a used msg frame back to free queue
- PCI Master frees a MFA through outbound queue port of device(OFQPR)
- while local processor frees a MFA into its inbound free queue(IFHPR)
-
- Used msg frame does not need to be recycled in the order they
- read
-
- This function has to be called by PCI master to initialize Inbound free queue
- and by device to initialize Outbound free queue before I2OFIFOAlloc can be used.
- **/
-extern I2OSTATUS I2OFIFOFree( LOCATION,
- unsigned int base,
- void *pMsg );
-
-/**
- Post a msg into FIFO
- PCI Master posts a msg through inbound queue port of device(IFQPR)
- while local processor post a msg into its outbound post queue(OPHPR)
-
- The total number of msg must be less than the max size of the queue
- Otherwise queue overflow interrupt will assert.
- **/
-extern I2OSTATUS I2OFIFOPost( LOCATION,
- unsigned int base,
- void *pMsg );
-
-/**
- Read a msg from FIFO
- PCI Master reads a msg through outbound queue port of device(OFQPR)
- while local processor reads a msg from its inbound post queue(IPTPR)
- **/
-extern I2OSTATUS I2OFIFOGet( LOCATION,
- unsigned int base,
- void **pMsg );
-
-/**
- Get the I2O PCI configuration identification register
- **/
-extern I2OSTATUS I2OPCIConfigGet( LOCATION,
- unsigned int base,
- I2OIOP *);
-
-#endif
+++ /dev/null
-/*********************************************************
- * $Id
- *
- * copyright @ Motorola, 1999
- *********************************************************/
-#include "i2o.h"
-
-extern unsigned int load_runtime_reg( unsigned int eumbbar, unsigned int reg );
-#pragma Alias( load_runtime_reg, "load_runtime_reg" );
-
-extern void store_runtime_reg( unsigned int eumbbar, unsigned int reg, unsigned int val );
-#pragma Alias( store_runtime_reg, "store_runtime_reg" );
-
-typedef struct _fifo_stat
-{
- QUEUE_SIZE qsz;
- unsigned int qba;
-} FIFOSTAT;
-
-FIFOSTAT fifo_stat = { QSIZE_4K, 0xffffffff };
-
-/**********************************************************************************
- * function: I2OMsgEnable
- *
- * description: Enable the interrupt associated with in/out bound msg
- * return I2OSUCCESS if no error, otherwise return I2OMSGINVALID.
- *
- * All previously enabled interrupts are preserved.
- * note:
- * Inbound message interrupt generated by PCI master and serviced by local processor
- * Outbound message interrupt generated by local processor and serviced by PCI master
- *
- * local processor needs to enable its inbound interrupts it wants to handle(LOCAL)
- * PCI master needs to enable the outbound interrupts of devices it wants to handle(REMOTE)
- ************************************************************************************/
-I2OSTATUS I2OMsgEnable ( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned char n ) /* b'1' - msg 0
- * b'10'- msg 1
- * b'11'- both
- */
-{
- unsigned int reg, val;
- if ( ( n & 0x3 ) == 0 )
- {
- /* neither msg 0, nor msg 1 */
- return I2OMSGINVALID;
- }
-
- n = (~n) & 0x3;
- /* LOCATION - REMOTE : enable outbound message of device, pcsrbar as base
- * LOCAL : enable local inbound message, eumbbar as base
- */
- reg = ( loc == REMOTE ? I2O_OMIMR : I2O_IMIMR );
- val = load_runtime_reg( base, reg );
-
- val &= 0xfffffffc; /* masked out the msg interrupt bits */
- val |= n; /* LSB are the one we want */
- store_runtime_reg( base, reg, val );
-
- return I2OSUCCESS;
-}
-
-/*********************************************************************************
- * function: I2OMsgDisable
- *
- * description: Disable the interrupt associated with in/out bound msg
- * Other previously enabled interrupts are preserved.
- * return I2OSUCCESS if no error otherwise return I2OMSGINVALID
- *
- * note:
- * local processor needs to disable its inbound interrupts it is not interested(LOCAL)
- * PCI master needs to disable outbound interrupts of devices it is not interested(REMOTE)
- *********************************************************************************/
-I2OSTATUS I2OMsgDisable( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned char n ) /* b'1' - msg 0
- * b'10'- msg 1
- * b'11'- both
- */
-{
- unsigned int reg, val;
-
- if ( ( n & 0x3 ) == 0 )
- {
- /* neither msg 0, nor msg 1 */
- return I2OMSGINVALID;
- }
-
- /* LOCATION - REMOTE : disable outbound message interrupt of device, pcsrbar as base
- * LOCAL : disable local inbound message interrupt, eumbbar as base
- */
- reg = ( loc == REMOTE ? I2O_OMIMR : I2O_IMIMR );
- val = load_runtime_reg( base, reg );
-
- val &= 0xfffffffc; /* masked out the msg interrupt bits */
- val |= ( n & 0x3 );
- store_runtime_reg( base, reg, val );
-
- return I2OSUCCESS;
-
-}
-
-/**************************************************************************
- * function: I2OMsgGet
- *
- * description: Local processor reads the nth Msg register from its inbound msg,
- * or a PCI Master reads nth outbound msg from device
- *
- * return I2OSUCCESS if no error, otherwise return I2OMSGINVALID.
- *
- * note:
- * If it is not local, pcsrbar must be passed to the function. Otherwise eumbbar is passed.
- * If it is remote, outbound msg on the device is read; otherwise local inbound msg is read
- *************************************************************************/
-I2OSTATUS I2OMsgGet ( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /*pcsrbar/eumbbar */
- unsigned int n, /* 0 or 1 */
- unsigned int *msg )
-{
- if ( n >= I2O_NUM_MSG || msg == 0 )
- {
- return I2OMSGINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* read the outbound msg of the device, pcsrbar as base */
- *msg = load_runtime_reg( base, I2O_OMR0+n*I2O_REG_OFFSET );
- }
- else
- {
- /* read the inbound msg sent by PCI master, eumbbar as base */
- *msg = load_runtime_reg( base, I2O_IMR0+n*I2O_REG_OFFSET );
- }
-
- return I2OSUCCESS;
-}
-
-/***************************************************************
- * function: I2OMsgPost
- *
- * description: Kahlua writes to its nth outbound msg register
- * PCI master writes to nth inbound msg register of device
- *
- * return I2OSUCCESS if no error, otherwise return I2OMSGINVALID.
- *
- * note:
- * If it is not local, pcsrbar must be passed to the function. Otherwise eumbbar is passed.
- *
- * If it is remote, inbound msg on the device is written; otherwise local outbound msg is written
- ***************************************************************/
-I2OSTATUS I2OMsgPost( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /*pcsrbar/eumbbar */
- unsigned int n, /* 0 or 1 */
- unsigned int msg )
-{
- if ( n >= I2O_NUM_MSG )
- {
- return I2OMSGINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* write to the inbound msg register of the device, pcsrbar as base */
- store_runtime_reg( base, I2O_IMR0+n*I2O_REG_OFFSET, msg );
- }
- else
- {
- /* write to the outbound msg register for PCI master to read, eumbbar as base */
- store_runtime_reg( base, I2O_OMR0+n*I2O_REG_OFFSET, msg );
- }
-
- return I2OSUCCESS;
-}
-
-/***********************************************************************
- * function: I2ODBEnable
- *
- * description: Local processor enables it's inbound doorbell interrupt
- * PCI master enables outbound doorbell interrupt of devices
- * Other previously enabled interrupts are preserved.
- * Return I2OSUCCESS if no error otherwise return I2ODBINVALID
- *
- * note:
- * In DoorBell interrupt is generated by PCI master and serviced by local processor
- * Out Doorbell interrupt is generated by local processor and serviced by PCI master
- *
- * Out Doorbell interrupt is generated by local processor and serviced by PCI master
- * PCI master needs to enable the outbound doorbell interrupts of device it wants to handle
- **********************************************************************/
-I2OSTATUS I2ODBEnable( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int in_db ) /* when LOCAL, I2O_IN_DB, MC, I2O_IN_DB|MC */
-{
-
- /* LOCATION - REMOTE : PCI master initializes outbound doorbell message of device
- * LOCAL : Kahlua initializes its inbound doorbell message
- */
- unsigned int val;
-
- if ( loc == LOCAL && ( in_db & 0x3 ) == 0 )
- {
- return I2ODBINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* pcsrbar is base */
- val = load_runtime_reg( base, I2O_OMIMR );
- val &= 0xfffffff7;
- store_runtime_reg( base, I2O_OMIMR , val );
- }
- else
- {
- /* eumbbar is base */
- val = load_runtime_reg( base, I2O_IMIMR);
- in_db = ( (~in_db) & 0x3 ) << 3;
- val = ( val & 0xffffffe7) | in_db;
- store_runtime_reg( base, I2O_IMIMR, val );
- }
-
- return I2OSUCCESS;
-}
-
-/**********************************************************************************
- * function: I2ODBDisable
- *
- * description: local processor disables its inbound DoorBell Interrupt
- * PCI master disables outbound DoorBell interrupt of device
- * Other previously enabled interrupts are preserved.
- * return I2OSUCCESS if no error.Otherwise return I2ODBINVALID
- *
- * note:
- * local processor needs to disable its inbound doorbell interrupts it is not interested
- *
- * PCI master needs to disable outbound doorbell interrupts of device it is not interested
- ************************************************************************************/
-I2OSTATUS I2ODBDisable( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int in_db ) /* when LOCAL, I2O_IN_DB, MC, I2O_IN_DB|MC */
-{
- /* LOCATION - REMOTE : handle device's out bound message initialization
- * LOCAL : handle local in bound message initialization
- */
- unsigned int val;
-
- if ( loc == LOCAL && ( in_db & 0x3 ) == 0 )
- {
- return I2ODBINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* pcsrbar is the base */
- val = load_runtime_reg( base, I2O_OMIMR );
- val |= 0x8;
- store_runtime_reg( base, I2O_OMIMR, val );
- }
- else
- {
- val = load_runtime_reg( base, I2O_IMIMR);
- in_db = ( in_db & 0x3 ) << 3;
- val |= in_db;
- store_runtime_reg( base, I2O_IMIMR, val );
- }
-
- return I2OSUCCESS;
-}
-
-/**********************************************************************************
- * function: I2ODBGet
- *
- * description: Local processor reads its in doorbell register,
- * PCI master reads the outdoorbell register of device.
- * After a doorbell register is read, the whole register will be cleared.
- * Otherwise, HW keeps generating interrupt.
- *
- * note:
- * If it is not local, pcsrbar must be passed to the function.
- * Otherwise eumbbar is passed.
- *
- * If it is remote, out doorbell register on the device is read.
- * Otherwise local in doorbell is read
- *
- * If the register is not cleared by write to it, any remaining bit of b'1's
- * will cause interrupt pending.
- *********************************************************************************/
-unsigned int I2ODBGet( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base) /* pcsrbar/eumbbar */
-{
- unsigned int msg, val;
-
- if ( loc == REMOTE )
- {
- /* read outbound doorbell register of device, pcsrbar is the base */
- val = load_runtime_reg( base, I2O_ODBR );
- msg = val & 0xe0000000;
- store_runtime_reg( base, I2O_ODBR, val ); /* clear the register */
- }
- else
- {
- /* read the inbound doorbell register, eumbbar is the base */
- val = load_runtime_reg( base, I2O_IDBR );
- store_runtime_reg( base, I2O_IDBR, val ); /* clear the register */
- msg = val;
- }
-
- return msg;
-}
-
-/**********************************************************************
- * function: I2ODBPost
- *
- * description: local processor writes to a outbound doorbell register,
- * PCI master writes to the inbound doorbell register of device
- *
- * note:
- * If it is not local, pcsrbar must be passed to the function.
- * Otherwise eumbbar is passed.
- *
- * If it is remote, in doorbell register on the device is written.
- * Otherwise local out doorbell is written
- *********************************************************************/
-void I2ODBPost( LOCATION loc, /* REMOTE/LOCAL */
- unsigned int base, /* pcsrbar/eumbbar */
- unsigned int msg ) /* in / out */
-{
- if ( loc == REMOTE )
- {
- /* write to inbound doorbell register of device, pcsrbar is the base */
- store_runtime_reg( base, I2O_IDBR, msg );
- }
- else
- {
- /* write to local outbound doorbell register, eumbbar is the base */
- store_runtime_reg( base, I2O_ODBR, msg & 0x1fffffff );
- }
-
-}
-
-/********************************************************************
- * function: I2OOutMsgStatGet
- *
- * description: PCI master reads device's outbound msg unit interrupt status.
- * Reading an interrupt status register,
- * the register will be cleared.
- *
- * The value of the status register is AND with the outbound
- * interrupt mask and result is returned.
- *
- * note:
- * pcsrbar must be passed to the function.
- ********************************************************************/
-I2OSTATUS I2OOutMsgStatGet( unsigned int pcsrbar, I2OOMSTAT *val )
-{
- unsigned int stat;
- unsigned int mask;
-
- if ( val == 0 )
- {
- return I2OINVALID;
- }
-
- /* read device's outbound status */
- stat = load_runtime_reg( pcsrbar, I2O_OMISR );
- mask = load_runtime_reg( pcsrbar, I2O_OMIMR );
- store_runtime_reg( pcsrbar, I2O_OMISR, stat & 0xffffffd7);
-
- stat &= mask;
- val->rsvd0 = ( stat & 0xffffffc0 ) >> 6;
- val->opqi = ( stat & 0x00000020 ) >> 5;
- val->rsvd1 = ( stat & 0x00000010 ) >> 4;
- val->odi = ( stat & 0x00000008 ) >> 3;
- val->rsvd2 = ( stat & 0x00000004 ) >> 2;
- val->om1i = ( stat & 0x00000002 ) >> 1;
- val->om0i = ( stat & 0x00000001 );
-
- return I2OSUCCESS;
-}
-
-/********************************************************************
- * function: I2OInMsgStatGet
- *
- * description: Local processor reads its inbound msg unit interrupt status.
- * Reading an interrupt status register,
- * the register will be cleared.
- *
- * The inbound msg interrupt status is AND with the inbound
- * msg interrupt mask and result is returned.
- *
- * note:
- * eumbbar must be passed to the function.
- ********************************************************************/
-I2OSTATUS I2OInMsgStatGet(unsigned int eumbbar, I2OIMSTAT *val)
-{
- unsigned int stat;
- unsigned int mask;
-
- if ( val == 0 )
- {
- return I2OINVALID;
- }
-
- /* read device's outbound status */
- stat = load_runtime_reg( eumbbar, I2O_OMISR );
- mask = load_runtime_reg( eumbbar, I2O_OMIMR );
- store_runtime_reg( eumbbar, I2O_OMISR, stat & 0xffffffe7 );
-
- stat &= mask;
- val->rsvd0 = ( stat & 0xfffffe00 ) >> 9;
- val->ofoi = ( stat & 0x00000100 ) >> 8;
- val->ipoi = ( stat & 0x00000080 ) >> 7;
- val->rsvd1 = ( stat & 0x00000040 ) >> 6;
- val->ipqi = ( stat & 0x00000020 ) >> 5;
- val->mci = ( stat & 0x00000010 ) >> 4;
- val->idi = ( stat & 0x00000008 ) >> 3;
- val->rsvd2 = ( stat & 0x00000004 ) >> 2;
- val->im1i = ( stat & 0x00000002 ) >> 1;
- val->im0i = ( stat & 0x00000001 );
-
- return I2OSUCCESS;
-
-}
-
-/***********************************************************
- * function: I2OFIFOInit
- *
- * description: Configure the I2O FIFO, including QBAR,
- * IFHPR/IFTPR, IPHPR/IPTPR, OFHPR/OFTPR,
- * OPHPR/OPTPR, MUCR.
- *
- * return I2OSUCCESS if no error,
- * otherwise return I2OQUEINVALID
- *
- * note: It is NOT this driver's responsibility of initializing
- * MFA blocks, i.e., FIFO queue itself. The MFA blocks
- * must be initialized before I2O unit can be used.
- ***********************************************************/
-I2OSTATUS I2OFIFOInit( unsigned int eumbbar,
- QUEUE_SIZE sz, /* value of CQS of MUCR */
- unsigned int qba) /* queue base address that must be aligned at 1M */
-{
-
- if ( ( qba & 0xfffff ) != 0 )
- {
- /* QBA must be aligned at 1Mbyte boundary */
- return I2OQUEINVALID;
- }
-
- store_runtime_reg( eumbbar, I2O_QBAR, qba );
- store_runtime_reg( eumbbar, I2O_MUCR, (unsigned int)sz );
- store_runtime_reg( eumbbar, I2O_IFHPR, qba );
- store_runtime_reg( eumbbar, I2O_IFTPR, qba );
- store_runtime_reg( eumbbar, I2O_IPHPR, qba + 1 * ( sz << 11 ));
- store_runtime_reg( eumbbar, I2O_IPTPR, qba + 1 * ( sz << 11 ));
- store_runtime_reg( eumbbar, I2O_OFHPR, qba + 2 * ( sz << 11 ));
- store_runtime_reg( eumbbar, I2O_OFTPR, qba + 2 * ( sz << 11 ));
- store_runtime_reg( eumbbar, I2O_OPHPR, qba + 3 * ( sz << 11 ));
- store_runtime_reg( eumbbar, I2O_OPTPR, qba + 3 * ( sz << 11 ));
-
- fifo_stat.qsz = sz;
- fifo_stat.qba = qba;
-
- return I2OSUCCESS;
-}
-
-/**************************************************
- * function: I2OFIFOEnable
- *
- * description: Enable the circular queue
- * return I2OSUCCESS if no error.
- * Otherwise I2OQUEINVALID is returned.
- *
- * note:
- *************************************************/
-I2OSTATUS I2OFIFOEnable( unsigned int eumbbar )
-{
- unsigned int val;
-
- if ( fifo_stat.qba == 0xfffffff )
- {
- return I2OQUEINVALID;
- }
-
- val = load_runtime_reg( eumbbar, I2O_MUCR );
- store_runtime_reg( eumbbar, I2O_MUCR, val | 0x1 );
-
- return I2OSUCCESS;
-}
-
-/**************************************************
- * function: I2OFIFODisable
- *
- * description: Disable the circular queue
- *
- * note:
- *************************************************/
-void I2OFIFODisable( unsigned int eumbbar )
-{
- if ( fifo_stat.qba == 0xffffffff )
- {
- /* not enabled */
- return;
- }
-
- unsigned int val = load_runtime_reg( eumbbar, I2O_MUCR );
- store_runtime_reg( eumbbar, I2O_MUCR, val & 0xfffffffe );
-}
-
-/****************************************************
- * function: I2OFIFOAlloc
- *
- * description: Allocate a free MFA from free FIFO.
- * return I2OSUCCESS if no error.
- * return I2OQUEEMPTY if no more free MFA.
- * return I2OINVALID on other errors.
- *
- * A free MFA must be allocated before a
- * message can be posted.
- *
- * note:
- * PCI Master allocates a free MFA from inbound queue of device
- * (pcsrbar is the base,) through the inbound queue port of device
- * while local processor allocates a free MFA from its outbound
- * queue (eumbbar is the base.)
- *
- ****************************************************/
-I2OSTATUS I2OFIFOAlloc( LOCATION loc,
- unsigned int base,
- void **pMsg )
-{
- I2OSTATUS stat = I2OSUCCESS;
- void *pHdr, *pTil;
-
- if ( pMsg == 0 || *pMsg == 0 || fifo_stat.qba == 0xffffffff )
- {
- /* not configured */
- return I2OQUEINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* pcsrbar is the base and read the inbound free tail ptr */
- pTil = (void *)load_runtime_reg( base, I2O_IFQPR );
- if ( ( (unsigned int)pTil & 0xFFFFFFF ) == 0xFFFFFFFF )
- {
- stat = I2OQUEEMPTY;
- }
- else
- {
- *pMsg = pTil;
- }
- }
- else
- {
- /* eumbbar is the base and read the outbound free tail ptr */
- pHdr = (void *)load_runtime_reg( base, I2O_OFHPR ); /* queue head */
- pTil = (void *)load_runtime_reg( base, I2O_OFTPR ); /* queue tail */
-
- /* check underflow */
- if ( pHdr == pTil )
- {
- /* hdr and til point to the same fifo item, no free MFA */
- stat = I2OQUEEMPTY;
- }
- else
- {
- /* update OFTPR */
- *pMsg = (void *)(*(unsigned char *)pTil);
- pTil = (void *)((unsigned int)pTil + 4);
- if ( (unsigned int)pTil == fifo_stat.qba + ( 4 * ( fifo_stat.qsz << 11 ) ) )
- {
- /* reach the upper limit */
- pTil = (void *)(fifo_stat.qba + ( 3 * (fifo_stat.qsz << 11) ));
- }
- store_runtime_reg( base, I2O_OFTPR, (unsigned int)pTil );
- }
- }
-
- return stat;
-}
-
-/******************************************************
- * function: I2OFIFOFree
- *
- * description: Free a used MFA back to free queue after
- * use.
- * return I2OSUCCESS if no error.
- * return I2OQUEFULL if inbound free queue
- * overflow
- *
- * note: PCI Master frees a MFA into device's outbound queue
- * (OFQPR) while local processor frees a MFA into its
- * inbound queue (IFHPR).
- *****************************************************/
-I2OSTATUS I2OFIFOFree( LOCATION loc,
- unsigned int base,
- void *pMsg )
-{
- void **pHdr, **pTil;
- I2OSTATUS stat = I2OSUCCESS;
-
- if ( fifo_stat.qba == 0xffffffff || pMsg == 0 )
- {
- return I2OQUEINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* pcsrbar is the base */
- store_runtime_reg( base, I2O_OFQPR, (unsigned int)pMsg );
- }
- else
- {
- /* eumbbar is the base */
- pHdr = (void **)load_runtime_reg( base, I2O_IFHPR );
- pTil = (void **)load_runtime_reg( base, I2O_IFTPR );
-
- /* store MFA */
- *pHdr = pMsg;
-
- /* update IFHPR */
- pHdr += 4;
-
- if ( (unsigned int)pHdr == fifo_stat.qba + ( fifo_stat.qsz << 11 ) )
- {
- /* reach the upper limit */
- pHdr = (void **)fifo_stat.qba;
- }
-
- /* check inbound free queue overflow */
- if ( pHdr != pTil )
- {
- store_runtime_reg( base, I2O_OPHPR, (unsigned int)pHdr);
- }
- else
- {
- stat = I2OQUEFULL;
- }
-
- }
-
- return stat;
-
-}
-
-/*********************************************
- * function: I2OFIFOPost
- *
- * description: Post a msg into FIFO post queue
- * the value of msg must be the one
- * returned by I2OFIFOAlloc
- *
- * note: PCI Master posts a msg into device's inbound queue
- * (IFQPR) while local processor post a msg into device's
- * outbound queue (OPHPR)
- *********************************************/
-I2OSTATUS I2OFIFOPost( LOCATION loc,
- unsigned int base,
- void *pMsg )
-{
- void **pHdr, **pTil;
- I2OSTATUS stat = I2OSUCCESS;
-
- if ( fifo_stat.qba == 0xffffffff || pMsg == 0 )
- {
- return I2OQUEINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* pcsrbar is the base */
- store_runtime_reg( base, I2O_IFQPR, (unsigned int)pMsg );
- }
- else
- {
- /* eumbbar is the base */
- pHdr = (void **)load_runtime_reg( base, I2O_OPHPR );
- pTil = (void **)load_runtime_reg( base, I2O_OPTPR );
-
- /* store MFA */
- *pHdr = pMsg;
-
- /* update IFHPR */
- pHdr += 4;
-
- if ( (unsigned int)pHdr == fifo_stat.qba + 3 * ( fifo_stat.qsz << 11 ) )
- {
- /* reach the upper limit */
- pHdr = (void **)(fifo_stat.qba + 2 * ( fifo_stat.qsz << 11 ) );
- }
-
- /* check post queue overflow */
- if ( pHdr != pTil )
- {
- store_runtime_reg( base, I2O_OPHPR, (unsigned int)pHdr);
- }
- else
- {
- stat = I2OQUEFULL;
- }
- }
-
- return stat;
-}
-
-/************************************************
- * function: I2OFIFOGet
- *
- * description: Read a msg from FIFO
- * This function should be called
- * only when there is a corresponding
- * msg interrupt.
- *
- * note: PCI Master reads a msg from device's outbound queue
- * (OFQPR) while local processor reads a msg from device's
- * inbound queue (IPTPR)
- ************************************************/
-I2OSTATUS I2OFIFOGet( LOCATION loc,
- unsigned int base,
- void **pMsg )
-{
- I2OSTATUS stat = I2OSUCCESS;
- void *pHdr, *pTil;
-
- if ( pMsg == 0 || *pMsg == 0 || fifo_stat.qba == 0xffffffff )
- {
- /* not configured */
- return I2OQUEINVALID;
- }
-
- if ( loc == REMOTE )
- {
- /* pcsrbar is the base */
- pTil = (void *)load_runtime_reg( base, I2O_OFQPR );
- if ( ( (unsigned int)pTil & 0xFFFFFFF ) == 0xFFFFFFFF )
- {
- stat = I2OQUEEMPTY;
- }
- else
- {
- *pMsg = pTil;
- }
- }
- else
- {
- /* eumbbar is the base and read the outbound free tail ptr */
- pHdr = (void *)load_runtime_reg( base, I2O_IPHPR ); /* queue head */
- pTil = (void *)load_runtime_reg( base, I2O_IPTPR ); /* queue tail */
-
- /* check underflow */
- if ( pHdr == pTil )
- {
- /* no free MFA */
- stat = I2OQUEEMPTY;
- }
- else
- {
- /* update OFTPR */
- *pMsg = (void *)(*(unsigned char *)pTil);
- pTil = (void *)((unsigned int)pTil + 4);
- if ( (unsigned int)pTil == fifo_stat.qba + 2 * ( fifo_stat.qsz << 11 ) )
- {
- /* reach the upper limit */
- pTil = (void *)(fifo_stat.qba + 1 * (fifo_stat.qsz << 11) );
- }
-
- store_runtime_reg( base, I2O_IPTPR, (unsigned int)pTil );
- }
- }
-
- return stat;
-}
-
-/********************************************************
- * function: I2OIOP
- *
- * description: Get the I2O PCI configuration identification
- * register.
- *
- * note: PCI master should pass pcsrbar while local processor
- * should pass eumbbar.
- *********************************************************/
-I2OSTATUS I2OPCIConfigGet( LOCATION loc,
- unsigned int base,
- I2OIOP * val)
-{
- unsigned int tmp;
- if ( val == 0 )
- {
- return I2OINVALID;
- }
- tmp = load_runtime_reg( base, PCI_CFG_CLA );
- val->base_class = ( tmp & 0xFF) << 16;
- tmp = load_runtime_reg( base, PCI_CFG_SCL );
- val->sub_class= ( (tmp & 0xFF) << 8 );
- tmp = load_runtime_reg( base, PCI_CFG_PIC );
- val->prg_code = (tmp & 0xFF);
- return I2OSUCCESS;
-}
-
-/*********************************************************
- * function: I2OFIFOIntEnable
- *
- * description: Enable the circular post queue interrupt
- *
- * note:
- * PCI master enables outbound FIFO interrupt of device
- * pscrbar is the base
- * Device enables its inbound FIFO interrupt
- * eumbbar is the base
- *******************************************************/
-void I2OFIFOIntEnable( LOCATION loc, unsigned int base )
-{
- unsigned int reg, val;
-
- /* LOCATION - REMOTE : enable outbound message of device, pcsrbar as base
- * LOCAL : enable local inbound message, eumbbar as base
- */
- reg = ( loc == REMOTE ? I2O_OMIMR : I2O_IMIMR );
- val = load_runtime_reg( base, reg );
-
- val &= 0xffffffdf; /* clear the msg interrupt bits */
- store_runtime_reg( base, reg, val );
-
-}
-
-/****************************************************
- * function: I2OFIFOIntDisable
- *
- * description: Disable the circular post queue interrupt
- *
- * note:
- * PCI master disables outbound FIFO interrupt of device
- * (pscrbar is the base)
- * Device disables its inbound FIFO interrupt
- * (eumbbar is the base)
- *****************************************************/
-void I2OFIFOIntDisable( LOCATION loc, unsigned int base )
-{
-
- /* LOCATION - REMOTE : disable outbound message interrupt of device, pcsrbar as base
- * LOCAL : disable local inbound message interrupt, eumbbar as base
- */
- unsigned int reg = ( loc == REMOTE ? I2O_OMIMR : I2O_IMIMR );
- unsigned int val = load_runtime_reg( base, reg );
-
- val |= 0x00000020; /* masked out the msg interrupt bits */
- store_runtime_reg( base, reg, val );
-
-}
-
-/*********************************************************
- * function: I2OFIFOOverflowIntEnable
- *
- * description: Enable the circular queue overflow interrupt
- *
- * note:
- * Device enables its inbound FIFO post overflow interrupt
- * and outbound free overflow interrupt.
- * eumbbar is the base
- *******************************************************/
-void I2OFIFOOverflowIntEnable( unsigned int eumbbar )
-{
- unsigned int val = load_runtime_reg( eumbbar, I2O_IMIMR );
-
- val &= 0xfffffe7f; /* clear the two overflow interrupt bits */
- store_runtime_reg( eumbbar, I2O_IMIMR, val );
-
-}
-
-/****************************************************
- * function: I2OFIFOOverflowIntDisable
- *
- * description: Disable the circular queue overflow interrupt
- *
- * note:
- * Device disables its inbound post FIFO overflow interrupt
- * and outbound free FIFO overflow interrupt
- * (eumbbar is the base)
- *****************************************************/
-void I2OFIFOOverflowIntDisable( unsigned int eumbbar )
-{
-
- unsigned int val = load_runtime_reg( eumbbar, I2O_IMIMR );
-
- val |= 0x00000180; /* masked out the msg overflow interrupt bits */
- store_runtime_reg( eumbbar, I2O_IMIMR, val );
-}
+++ /dev/null
-/**************************************
- *
- * copyright @ Motorola, 1999
- *
- **************************************/
-
-/**********************************************************
- * function: load_runtime_reg
- *
- * input: r3 - value of eumbbar
- * r4 - register offset in embedded utility space
- *
- * output: r3 - register content
- **********************************************************/
- .text
- .align 2
- .global load_runtime_reg
-
-load_runtime_reg:
-
- xor r5,r5,r5
- or r5,r5,r3 /* save eumbbar */
-
- lwbrx r3,r4,r5
- sync
-
- bclr 20, 0
-
-/****************************************************************
- * function: store_runtime_reg
- *
- * input: r3 - value of eumbbar
- * r4 - register offset in embedded utility space
- * r5 - new value to be stored
- *
- ****************************************************************/
- .text
- .align 2
- .global store_runtime_reg
-store_runtime_reg:
-
- xor r0,r0,r0
-
- stwbrx r5, r4, r3
- sync
-
- bclr 20,0
projects / oweals / u-boot.git / commitdiff