FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/ppcreg.h

     /*-
      * Copyright (c) 1997 Nicolas Souchu
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     *
     */
    #ifndef __PPCREG_H
    #define __PPCREG_H
    
    /*
     * Parallel Port Chipset type.
     */
    #define SMC_LIKE        0
    #define SMC_37C665GT    1
    #define SMC_37C666GT    2
    #define NS_PC87332      3
    #define NS_PC87306      4
    #define INTEL_820191AA  5       /* XXX not implemented */
    #define GENERIC         6
    #define WINB_W83877F    7
    #define WINB_W83877AF   8
    #define WINB_UNKNOWN    9
    #define NS_PC87334      10
    
    /*
     * Generic structure to hold parallel port chipset info.
     */
    struct ppc_data {
    
            int ppc_unit;
            int ppc_type;
    
            int ppc_mode;           /* chipset current mode */
            int ppc_avm;            /* chipset available modes */
    
    #define PPC_IRQ_NONE            0x0
    #define PPC_IRQ_nACK            0x1
    #define PPC_IRQ_DMA             0x2
    #define PPC_IRQ_FIFO            0x4
    #define PPC_IRQ_nFAULT          0x8
            int ppc_irqstat;        /* remind irq settings */
    
    #define PPC_DMA_INIT            0x01
    #define PPC_DMA_STARTED         0x02
    #define PPC_DMA_COMPLETE        0x03
    #define PPC_DMA_INTERRUPTED     0x04
    #define PPC_DMA_ERROR           0x05
            int ppc_dmastat;        /* dma state */
            int ppc_dmachan;        /* dma channel */
            int ppc_dmaflags;       /* dma transfer flags */
            caddr_t ppc_dmaddr;     /* buffer address */
            u_int ppc_dmacnt;       /* count of bytes sent with dma */
    
    #define PPC_PWORD_MASK  0x30
    #define PPC_PWORD_16    0x00
    #define PPC_PWORD_8     0x10
    #define PPC_PWORD_32    0x20
            char ppc_pword;         /* PWord size */
            short ppc_fifo;         /* FIFO threshold */
    
            short ppc_wthr;         /* writeIntrThresold */
            short ppc_rthr;         /* readIntrThresold */
    
    #define ppc_base ppc_link.base
    #define ppc_epp ppc_link.epp_protocol
    #define ppc_irq ppc_link.id_irq
    #define ppc_subm ppc_link.submicroseq
    #define ppc_ptr ppc_link.ptr
    #define ppc_accum ppc_link.accum
    
            unsigned char ppc_flags;
    
            struct ppb_link ppc_link;
    };
    
    /*
     * Parallel Port Chipset registers.
    */
   #define PPC_SPP_DTR     0       /* SPP data register */
   #define PPC_ECP_A_FIFO  0       /* ECP Address fifo register */
   #define PPC_SPP_STR     1       /* SPP status register */
   #define PPC_SPP_CTR     2       /* SPP control register */
   #define PPC_EPP_DATA    4       /* EPP data register (8, 16 or 32 bit) */
   #define PPC_ECP_D_FIFO  0x400   /* ECP Data fifo register */
   #define PPC_ECP_CNFGA   0x400   /* Configuration register A */
   #define PPC_ECP_CNFGB   0x401   /* Configuration register B */
   #define PPC_ECP_ECR     0x402   /* ECP extended control register */
   
   #define PPC_FIFO_EMPTY  0x1     /* ecr register - bit 0 */
   #define PPC_FIFO_FULL   0x2     /* ecr register - bit 1 */
   #define PPC_SERVICE_INTR 0x4    /* ecr register - bit 2 */
   #define PPC_ENABLE_DMA  0x8     /* ecr register - bit 3 */
   #define PPC_nFAULT_INTR 0x10    /* ecr register - bit 4 */
   #define PPC_ECR_STD     0x0
   #define PPC_ECR_PS2     0x20
   #define PPC_ECR_FIFO    0x40
   #define PPC_ECR_ECP     0x60
   #define PPC_ECR_EPP     0x80
   
   #define PPC_DISABLE_INTR        (PPC_SERVICE_INTR | PPC_nFAULT_INTR)
   #define PPC_ECR_RESET           (PPC_ECR_PS2 | PPC_DISABLE_INTR)
   
   #define r_dtr(ppc) (inb((ppc)->ppc_base + PPC_SPP_DTR))
   #define r_str(ppc) (inb((ppc)->ppc_base + PPC_SPP_STR))
   #define r_ctr(ppc) (inb((ppc)->ppc_base + PPC_SPP_CTR))
   #define r_epp(ppc) (inb((ppc)->ppc_base + PPC_EPP_DATA))
   #define r_cnfgA(ppc) (inb((ppc)->ppc_base + PPC_ECP_CNFGA))
   #define r_cnfgB(ppc) (inb((ppc)->ppc_base + PPC_ECP_CNFGB))
   #define r_ecr(ppc) (inb((ppc)->ppc_base + PPC_ECP_ECR))
   #define r_fifo(ppc) (inb((ppc)->ppc_base + PPC_ECP_D_FIFO))
   
   #define w_dtr(ppc,byte) outb((ppc)->ppc_base + PPC_SPP_DTR, byte)
   #define w_str(ppc,byte) outb((ppc)->ppc_base + PPC_SPP_STR, byte)
   #define w_ctr(ppc,byte) outb((ppc)->ppc_base + PPC_SPP_CTR, byte)
   #define w_epp(ppc,byte) outb((ppc)->ppc_base + PPC_EPP_DATA, byte)
   #define w_ecr(ppc,byte) outb((ppc)->ppc_base + PPC_ECP_ECR, byte)
   #define w_fifo(ppc,byte) outb((ppc)->ppc_base + PPC_ECP_D_FIFO, byte)
   
   /*
    * Register defines for the PC873xx parts
    */
   
   #define PC873_FER       0x00
   #define PC873_PPENABLE  (1<<0)
   #define PC873_FAR       0x01
   #define PC873_PTR       0x02
   #define PC873_CFGLOCK   (1<<6)
   #define PC873_EPPRDIR   (1<<7)
   #define PC873_EXTENDED  (1<<7)
   #define PC873_LPTBIRQ7  (1<<3)
   #define PC873_FCR       0x03
   #define PC873_ZWS       (1<<5)
   #define PC873_ZWSPWDN   (1<<6)
   #define PC873_PCR       0x04
   #define PC873_EPPEN     (1<<0)
   #define PC873_EPP19     (1<<1)
   #define PC873_ECPEN     (1<<2)
   #define PC873_ECPCLK    (1<<3)
   #define PC873_PMC       0x06
   #define PC873_TUP       0x07
   #define PC873_SID       0x08
   #define PC873_PNP0      0x1b
   #define PC873_PNP1      0x1c
   #define PC873_LPTBA     0x19
   
   /*
    * Register defines for the SMC FDC37C66xGT parts
    */
   
   /* Init codes */
   #define SMC665_iCODE    0x55
   #define SMC666_iCODE    0x44
   
   /* Base configuration ports */
   #define SMC66x_CSR      0x3F0
   #define SMC666_CSR      0x370           /* hard-configured value for 666 */
   
   /* Bits */
   #define SMC_CR1_ADDR    0x3             /* bit 0 and 1 */
   #define SMC_CR1_MODE    (1<<3)          /* bit 3 */
   #define SMC_CR4_EMODE   0x3             /* bits 0 and 1 */
   #define SMC_CR4_EPPTYPE (1<<6)          /* bit 6 */
   
   /* Extended modes */
   #define SMC_SPP         0x0             /* SPP */
   #define SMC_EPPSPP      0x1             /* EPP and SPP */
   #define SMC_ECP         0x2             /* ECP */
   #define SMC_ECPEPP      0x3             /* ECP and EPP */
   
   /*
    * Register defines for the Winbond W83877F parts
    */
   
   #define WINB_W83877F_ID         0xa
   #define WINB_W83877AF_ID        0xb
   
   /* Configuration bits */
   #define WINB_HEFERE     (1<<5)          /* CROC bit 5 */
   #define WINB_HEFRAS     (1<<0)          /* CR16 bit 0 */
   
   #define WINB_PNPCVS     (1<<2)          /* CR16 bit 2 */
   #define WINB_CHIPID     0xf             /* CR9 bits 0-3 */
   
   #define WINB_PRTMODS0   (1<<2)          /* CR0 bit 2 */
   #define WINB_PRTMODS1   (1<<3)          /* CR0 bit 3 */
   #define WINB_PRTMODS2   (1<<7)          /* CR9 bit 7 */
   
   /* W83877F modes: CR9/bit7 | CR0/bit3 | CR0/bit2 */
   #define WINB_W83757     0x0
   #define WINB_EXTFDC     0x4
   #define WINB_EXTADP     0x8
   #define WINB_EXT2FDD    0xc
   #define WINB_JOYSTICK   0x80
   
   #define WINB_PARALLEL   0x80
   #define WINB_EPP_SPP    0x4
   #define WINB_ECP        0x8
   #define WINB_ECP_EPP    0xc
   
   #endif

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