add simple libata support in u-boot Signed-off-by: Dave Liu <daveliu@freescale.com>master
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/*
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* Copyright (C) 2008 Freescale Semiconductor, Inc. |
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* Dave Liu <daveliu@freescale.com> |
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* port from the libata of linux kernel |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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* |
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*/ |
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#include <libata.h> |
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u64 ata_id_n_sectors(u16 *id) |
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{ |
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if (ata_id_has_lba(id)) { |
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if (ata_id_has_lba48(id)) |
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return ata_id_u64(id, ATA_ID_LBA48_SECTORS); |
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else |
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return ata_id_u32(id, ATA_ID_LBA_SECTORS); |
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} else { |
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return 0; |
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} |
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} |
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u32 ata_dev_classify(u32 sig) |
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{ |
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u8 lbam, lbah; |
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lbam = (sig >> 16) & 0xff; |
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lbah = (sig >> 24) & 0xff; |
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if (((lbam == 0) && (lbah == 0)) || |
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((lbam == 0x3c) && (lbah == 0xc3))) |
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return ATA_DEV_ATA; |
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if ((lbam == 0x14) && (lbah == 0xeb)) |
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return ATA_DEV_ATAPI; |
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if ((lbam == 0x69) && (lbah == 0x96)) |
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return ATA_DEV_PMP; |
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return ATA_DEV_UNKNOWN; |
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} |
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static void ata_id_string(const u16 *id, unsigned char *s, |
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unsigned int ofs, unsigned int len) |
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{ |
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unsigned int c; |
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while (len > 0) { |
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c = id[ofs] >> 8; |
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*s = c; |
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s++; |
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c = id[ofs] & 0xff; |
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*s = c; |
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s++; |
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ofs++; |
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len -= 2; |
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} |
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} |
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void ata_id_c_string(const u16 *id, unsigned char *s, |
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unsigned int ofs, unsigned int len) |
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{ |
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unsigned char *p; |
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ata_id_string(id, s, ofs, len - 1); |
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p = s + strnlen((char *)s, len - 1); |
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while (p > s && p[-1] == ' ') |
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p--; |
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*p = '\0'; |
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} |
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void ata_dump_id(u16 *id) |
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{ |
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unsigned char serial[ATA_ID_SERNO_LEN + 1]; |
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unsigned char firmware[ATA_ID_FW_REV_LEN + 1]; |
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unsigned char product[ATA_ID_PROD_LEN + 1]; |
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u64 n_sectors; |
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/* Serial number */ |
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ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial)); |
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printf("S/N: %s\n\r", serial); |
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/* Firmware version */ |
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ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware)); |
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printf("Firmware version: %s\n\r", firmware); |
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/* Product model */ |
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ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product)); |
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printf("Product model number: %s\n\r", product); |
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/* Total sectors of device */ |
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n_sectors = ata_id_n_sectors(id); |
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printf("Capablity: %d sectors\n\r", n_sectors); |
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printf("id[49]: capabilities ==0x%04x\n" |
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"id[53]: field valid ==0x%04x\n" |
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"id[63]: mwdma ==0x%04x\n" |
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"id[64]: pio ==0x%04x\n" |
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"id[75]: queue depth ==0x%04x\n", |
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id[49], |
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id[53], |
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id[63], |
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id[64], |
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id[75]); |
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printf("id[76]: sata capablity ==0x%04x\n" |
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"id[78]: sata features supported ==0x%04x\n" |
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"id[79]: sata features enable ==0x%04x\n", |
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id[76], |
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id[78], |
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id[79]); |
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printf("id[80]: major version ==0x%04x\n" |
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"id[81]: minor version ==0x%04x\n" |
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"id[82]: command set supported 1 ==0x%04x\n" |
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"id[83]: command set supported 2 ==0x%04x\n" |
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"id[84]: command set extension ==0x%04x\n", |
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id[80], |
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id[81], |
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id[82], |
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id[83], |
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id[84]); |
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printf("id[85]: command set enable 1 ==0x%04x\n" |
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"id[86]: command set enable 2 ==0x%04x\n" |
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"id[87]: command set default ==0x%04x\n" |
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"id[88]: udma ==0x%04x\n" |
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"id[93]: hardware reset result ==0x%04x\n", |
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id[85], |
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id[86], |
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id[87], |
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id[88], |
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id[93]); |
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} |
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void ata_swap_buf_le16(u16 *buf, unsigned int buf_words) |
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{ |
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unsigned int i; |
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for (i = 0; i < buf_words; i++) |
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buf[i] = le16_to_cpu(buf[i]); |
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} |
@ -0,0 +1,205 @@ |
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/*
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* Copyright (C) 2008 Freescale Semiconductor, Inc. |
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* Dave Liu <daveliu@freescale.com> |
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* port from libata of linux kernel |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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* |
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*/ |
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#ifndef __LIBATA_H__ |
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#define __LIBATA_H__ |
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#include <common.h> |
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/* command
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*/ |
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enum ata_cmd { |
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/* non-NCQ command */ |
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ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ |
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ATA_CMD_FLUSH_CACHE = 0xE7, |
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ATA_CMD_FLUSH_CACHE_EXT = 0xEA, |
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ATA_CMD_ID_ATA = 0xEC, |
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ATA_CMD_ID_ATAPI = 0xA1, |
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ATA_CMD_READ_DMA = 0xC8, |
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ATA_CMD_READ_DMA_EXT = 0x25, |
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ATA_CMD_WRITE_DMA = 0xCA, |
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ATA_CMD_WRITE_DMA_EXT = 0x35, |
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ATA_CMD_PIO_READ = 0x20, |
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ATA_CMD_PIO_READ_EXT = 0x24, |
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ATA_CMD_PIO_WRITE = 0x30, |
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ATA_CMD_PIO_WRITE_EXT = 0x34, |
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ATA_CMD_SET_FEATURES = 0xEF, |
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/* NCQ command */ |
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ATA_CMD_READ_FPDMA_QUEUED = 0x60, |
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ATA_CMD_WRITE_FPDMA_QUEUED = 0x61, |
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}; |
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/* SETFEATURES stuff
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*/ |
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enum ata_set_features { |
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/* SETFEATURES stuff */ |
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SETFEATURES_XFER = 0x03, |
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XFER_UDMA_7 = 0x47, |
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XFER_UDMA_6 = 0x46, |
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XFER_UDMA_5 = 0x45, |
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XFER_UDMA_4 = 0x44, |
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XFER_UDMA_3 = 0x43, |
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XFER_UDMA_2 = 0x42, |
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XFER_UDMA_1 = 0x41, |
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XFER_UDMA_0 = 0x40, |
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XFER_MW_DMA_4 = 0x24, /* CFA only */ |
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XFER_MW_DMA_3 = 0x23, /* CFA only */ |
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XFER_MW_DMA_2 = 0x22, |
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XFER_MW_DMA_1 = 0x21, |
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XFER_MW_DMA_0 = 0x20, |
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XFER_PIO_6 = 0x0E, /* CFA only */ |
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XFER_PIO_5 = 0x0D, /* CFA only */ |
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XFER_PIO_4 = 0x0C, |
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XFER_PIO_3 = 0x0B, |
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XFER_PIO_2 = 0x0A, |
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XFER_PIO_1 = 0x09, |
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XFER_PIO_0 = 0x08, |
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XFER_PIO_SLOW = 0x00, |
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SETFEATURES_WC_ON = 0x02, /* Enable write cache */ |
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SETFEATURES_WC_OFF = 0x82, /* Disable write cache */ |
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SETFEATURES_SPINUP = 0x07, /* Spin-up drive */ |
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}; |
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enum ata_protocol { |
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ATA_PROT_UNKNOWN, /* unknown */ |
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ATA_PROT_NODATA, /* no data */ |
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ATA_PROT_PIO, /* PIO data xfer */ |
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ATA_PROT_DMA, /* DMA */ |
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ATA_PROT_NCQ, /* NCQ */ |
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ATA_PROT_ATAPI, /* packet command, PIO data xfer */ |
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ATA_PROT_ATAPI_NODATA, /* packet command, no data */ |
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ATA_PROT_ATAPI_DMA, /* packet command, DMA */ |
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}; |
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enum ata_dev_typed { |
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ATA_DEV_ATA, /* ATA device */ |
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ATA_DEV_ATAPI, /* ATAPI device */ |
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ATA_DEV_PMP, /* Port Multiplier Port */ |
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ATA_DEV_UNKNOWN, /* unknown */ |
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}; |
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enum { |
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ATA_SECT_SIZE = 512, |
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ATA_MAX_SECTORS_128 = 128, |
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ATA_MAX_SECTORS = 256, |
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ATA_MAX_SECTORS_LBA48 = 65535, |
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/* bits in ATA command block registers */ |
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ATA_HOB = (1 << 7), /* LBA48 selector */ |
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ATA_NIEN = (1 << 1), /* disable-irq flag */ |
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ATA_LBA = (1 << 6), /* LBA28 selector */ |
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ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */ |
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ATA_BUSY = (1 << 7), /* BSY status bit */ |
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ATA_DRDY = (1 << 6), /* device ready */ |
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ATA_DF = (1 << 5), /* device fault */ |
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ATA_DRQ = (1 << 3), /* data request i/o */ |
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ATA_ERR = (1 << 0), /* have an error */ |
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ATA_SRST = (1 << 2), /* software reset */ |
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ATA_ICRC = (1 << 7), /* interface CRC error */ |
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ATA_UNC = (1 << 6), /* uncorrectable media error */ |
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ATA_IDNF = (1 << 4), /* ID not found */ |
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ATA_ABORTED = (1 << 2), /* command aborted */ |
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ATA_ID_WORDS = 256, |
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ATA_ID_SERNO = 10, |
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ATA_ID_FW_REV = 23, |
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ATA_ID_PROD = 27, |
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ATA_ID_FIELD_VALID = 53, |
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ATA_ID_LBA_SECTORS = 60, |
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ATA_ID_MWDMA_MODES = 63, |
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ATA_ID_PIO_MODES = 64, |
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ATA_ID_QUEUE_DEPTH = 75, |
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ATA_ID_SATA_CAP = 76, |
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ATA_ID_SATA_FEATURES = 78, |
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ATA_ID_SATA_FEATURES_EN = 79, |
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ATA_ID_MAJOR_VER = 80, |
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ATA_ID_MINOR_VER = 81, |
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ATA_ID_UDMA_MODES = 88, |
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ATA_ID_LBA48_SECTORS = 100, |
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ATA_ID_SERNO_LEN = 20, |
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ATA_ID_FW_REV_LEN = 8, |
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ATA_ID_PROD_LEN = 40, |
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ATA_PIO3 = (1 << 0), |
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ATA_PIO4 = ATA_PIO3 | (1 << 1), |
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ATA_UDMA0 = (1 << 0), |
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ATA_UDMA1 = ATA_UDMA0 | (1 << 1), |
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ATA_UDMA2 = ATA_UDMA1 | (1 << 2), |
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ATA_UDMA3 = ATA_UDMA2 | (1 << 3), |
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ATA_UDMA4 = ATA_UDMA3 | (1 << 4), |
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ATA_UDMA5 = ATA_UDMA4 | (1 << 5), |
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ATA_UDMA6 = ATA_UDMA5 | (1 << 6), |
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ATA_UDMA7 = ATA_UDMA6 | (1 << 7), |
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}; |
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#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0) |
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#define ata_id_wcache_enabled(id) ((id)[85] & (1 << 5)) |
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#define ata_id_has_fua(id) ((id)[84] & (1 << 6)) |
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#define ata_id_has_flush(id) ((id)[83] & (1 << 12)) |
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#define ata_id_has_flush_ext(id) ((id)[83] & (1 << 13)) |
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#define ata_id_has_lba48(id) ((id)[83] & (1 << 10)) |
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#define ata_id_has_wcache(id) ((id)[82] & (1 << 5)) |
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#define ata_id_has_lba(id) ((id)[49] & (1 << 9)) |
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#define ata_id_has_dma(id) ((id)[49] & (1 << 8)) |
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#define ata_id_has_ncq(id) ((id)[76] & (1 << 8)) |
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#define ata_id_queue_depth(id) (((id)[75] & 0x1f) + 1) |
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#define ata_id_u32(id,n) \ |
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(((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)])) |
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#define ata_id_u64(id,n) \ |
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( ((u64) (id)[(n) + 3] << 48) | \
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((u64) (id)[(n) + 2] << 32) | \
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((u64) (id)[(n) + 1] << 16) | \
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((u64) (id)[(n) + 0]) ) |
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static inline unsigned int ata_id_major_version(const u16 *id) |
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{ |
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unsigned int mver; |
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if (id[ATA_ID_MAJOR_VER] == 0xFFFF) |
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return 0; |
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for (mver = 14; mver >= 1; mver--) |
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if (id[ATA_ID_MAJOR_VER] & (1 << mver)) |
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break; |
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return mver; |
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} |
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static inline int ata_id_is_sata(const u16 *id) |
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{ |
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return ata_id_major_version(id) >= 5 && id[93] == 0; |
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} |
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u64 ata_id_n_sectors(u16 *id); |
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u32 ata_dev_classify(u32 sig); |
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void ata_id_c_string(const u16 *id, unsigned char *s, |
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unsigned int ofs, unsigned int len); |
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void ata_dump_id(u16 *id); |
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void ata_swap_buf_le16(u16 *buf, unsigned int buf_words); |
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#endif /* __LIBATA_H__ */ |
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