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pciide_cy693_reg.h revision 1.2 
      1 /*	$NetBSD: pciide_cy693_reg.h,v 1.2 1998/12/03 14:06:16 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by the University of
     17  *	California, Berkeley and its contributors.
     18  * 4. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  */
     35 
     36 /*
     37  * Registers definitions for Contaq/Cypress's CY82693U PCI IDE controller.
     38  * Available from http://www.cypress.com/japan/prodgate/chip/cy82c693.html
     39  * This chip has 2 PCI IDE functions, each of them has only one channel
     40  * So there's no primary/secodary distinction in the registers defs.
     41  */
     42 
     43 /* IDE control register */
     44 #define CY_CTRL 0x40
     45 #define CY_CTRL_RETRY			0x00002000
     46 #define CY_CTRL_SLAVE_PREFETCH		0x00000400
     47 #define CY_CTRL_POSTWRITE		0x00000200
     48 #define	CY_CTRL_PREFETCH(drive)		(0x00000100 << (2 * (drive)))
     49 #define CY_CTRL_POSTWRITE_LENGTH_MASK	0x00000030
     50 #define CY_CTRL_POSTWRITE_LENGTH_OFF    4
     51 #define CY_CTRL_PREFETCH_LENGTH_MASK	0x00000003
     52 #define CY_CTRL_PREFETCH_LENGTH_OFF	0
     53 
     54 /* IDE addr setup control register */
     55 #define CY_ADDR_CTRL 0x48
     56 #define CY_ADDR_CTRL_SETUP_OFF(drive)  (4 * (drive))
     57 #define CY_ADDR_CTRL_SETUP_MASK(drive) \
     58 	(0x00000007 << CY_ADDR_CTRL_SETUP_OFF(drive))
     59 
     60 /* command control register */
     61 #define CY_CMD_CTRL 0x4c
     62 #define CY_CMD_CTRL_IOW_PULSE_OFF(drive)	(12 + 16 * (drive))
     63 #define CY_CMD_CTRL_IOW_REC_OFF(drive)		(8 + 16 * (drive))
     64 #define CY_CMD_CTRL_IOR_PULSE_OFF(drive)	(4 + 16 * (drive))
     65 #define CY_CMD_CTRL_IOR_REC_OFF(drive)		(0 + 16 * (drive))
     66 
     67 static int8_t cy_pio_pulse[] = {9, 4, 3, 2, 2};
     68 static int8_t cy_pio_rec[] =   {9, 7, 4, 2, 0};
     69 #ifdef unused
     70 static int8_t cy_dma_pulse[] = {7, 2, 2};
     71 static int8_t cy_dma_rec[] =   {7, 1, 0};
     72 #endif
     73