1 /* $NetBSD: pciide_cy693_reg.h,v 1.10 2007/12/25 18:33:41 perry 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 Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 /* 34 * Registers definitions for Contaq/Cypress's CY82693U PCI IDE controller. 35 * Available from http://www.cypress.com/japan/prodgate/chip/cy82c693.html 36 * This chip has 2 PCI IDE functions, each of them has only one channel 37 * So there's no primary/secodary distinction in the registers defs. 38 */ 39 40 /* IDE control register */ 41 #define CY_CTRL 0x40 42 #define CY_CTRL_RETRY 0x00002000 43 #define CY_CTRL_SLAVE_PREFETCH 0x00000400 44 #define CY_CTRL_POSTWRITE 0x00000200 45 #define CY_CTRL_PREFETCH(drive) (0x00000100 << (2 * (drive))) 46 #define CY_CTRL_POSTWRITE_LENGTH_MASK 0x00000030 47 #define CY_CTRL_POSTWRITE_LENGTH_OFF 4 48 #define CY_CTRL_PREFETCH_LENGTH_MASK 0x00000003 49 #define CY_CTRL_PREFETCH_LENGTH_OFF 0 50 51 /* IDE addr setup control register */ 52 #define CY_ADDR_CTRL 0x48 53 #define CY_ADDR_CTRL_SETUP_OFF(drive) (4 * (drive)) 54 #define CY_ADDR_CTRL_SETUP_MASK(drive) \ 55 (0x00000007 << CY_ADDR_CTRL_SETUP_OFF(drive)) 56 57 /* command control register */ 58 #define CY_CMD_CTRL 0x4c 59 #define CY_CMD_CTRL_IOW_PULSE_OFF(drive) (12 + 16 * (drive)) 60 #define CY_CMD_CTRL_IOW_REC_OFF(drive) (8 + 16 * (drive)) 61 #define CY_CMD_CTRL_IOR_PULSE_OFF(drive) (4 + 16 * (drive)) 62 #define CY_CMD_CTRL_IOR_REC_OFF(drive) (0 + 16 * (drive)) 63 64 static const int8_t cy_pio_pulse[] __unused = 65 {9, 4, 3, 2, 2}; 66 static const int8_t cy_pio_rec[] __unused = 67 {9, 7, 4, 2, 0}; 68 #ifdef unused 69 static const int8_t cy_dma_pulse[] __unused = 70 {7, 2, 2}; 71 static const int8_t cy_dma_rec[] __unused = 72 {7, 1, 0}; 73 #endif 74 75 /* 76 * The cypress is quite weird: it uses 8-bit ISA registers to control 77 * DMA modes. 78 */ 79 80 #define CY_DMA_ADDR 0x22 81 #define CY_DMA_SIZE 0x2 82 83 #define CY_DMA_IDX 0x00 84 #define CY_DMA_IDX_PRIMARY 0x30 85 #define CY_DMA_IDX_SECONDARY 0x31 86 #define CY_DMA_IDX_TIMEOUT 0x32 87 88 #define CY_DMA_DATA 0x01 89 /* Multiword DMA transfer, for CY_DMA_IDX_PRIMARY or CY_DMA_IDX_SECONDARY */ 90 #define CY_DMA_DATA_MODE_MASK 0x03 91 #define CY_DMA_DATA_SINGLE 0x04 92