NetBSD/sys/dev/pci/pciide_cy693_reg.h

92 lines
3.6 KiB
C

/* $NetBSD: pciide_cy693_reg.h,v 1.7 2003/10/05 17:48:49 bouyer Exp $ */
/*
* Copyright (c) 1998 Manuel Bouyer.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Manuel Bouyer.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
*/
/*
* Registers definitions for Contaq/Cypress's CY82693U PCI IDE controller.
* Available from http://www.cypress.com/japan/prodgate/chip/cy82c693.html
* This chip has 2 PCI IDE functions, each of them has only one channel
* So there's no primary/secodary distinction in the registers defs.
*/
/* IDE control register */
#define CY_CTRL 0x40
#define CY_CTRL_RETRY 0x00002000
#define CY_CTRL_SLAVE_PREFETCH 0x00000400
#define CY_CTRL_POSTWRITE 0x00000200
#define CY_CTRL_PREFETCH(drive) (0x00000100 << (2 * (drive)))
#define CY_CTRL_POSTWRITE_LENGTH_MASK 0x00000030
#define CY_CTRL_POSTWRITE_LENGTH_OFF 4
#define CY_CTRL_PREFETCH_LENGTH_MASK 0x00000003
#define CY_CTRL_PREFETCH_LENGTH_OFF 0
/* IDE addr setup control register */
#define CY_ADDR_CTRL 0x48
#define CY_ADDR_CTRL_SETUP_OFF(drive) (4 * (drive))
#define CY_ADDR_CTRL_SETUP_MASK(drive) \
(0x00000007 << CY_ADDR_CTRL_SETUP_OFF(drive))
/* command control register */
#define CY_CMD_CTRL 0x4c
#define CY_CMD_CTRL_IOW_PULSE_OFF(drive) (12 + 16 * (drive))
#define CY_CMD_CTRL_IOW_REC_OFF(drive) (8 + 16 * (drive))
#define CY_CMD_CTRL_IOR_PULSE_OFF(drive) (4 + 16 * (drive))
#define CY_CMD_CTRL_IOR_REC_OFF(drive) (0 + 16 * (drive))
static const int8_t cy_pio_pulse[] __attribute__((__unused__)) =
{9, 4, 3, 2, 2};
static const int8_t cy_pio_rec[] __attribute__((__unused__)) =
{9, 7, 4, 2, 0};
#ifdef unused
static const int8_t cy_dma_pulse[] __attribute__((__unused__)) =
{7, 2, 2};
static const int8_t cy_dma_rec[] __attribute__((__unused__)) =
{7, 1, 0};
#endif
/*
* The cypress is quite weird: it uses 8-bit ISA registers to control
* DMA modes.
*/
#define CY_DMA_ADDR 0x22
#define CY_DMA_SIZE 0x2
#define CY_DMA_IDX 0x00
#define CY_DMA_IDX_PRIMARY 0x30
#define CY_DMA_IDX_SECONDARY 0x31
#define CY_DMA_IDX_TIMEOUT 0x32
#define CY_DMA_DATA 0x01
/* Multiword DMA transfer, for CY_DMA_IDX_PRIMARY or CY_DMA_IDX_SECONDARY */
#define CY_DMA_DATA_MODE_MASK 0x03
#define CY_DMA_DATA_SINGLE 0x04