1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2008 Freescale Semiconductor, Inc. 4 * Dave Liu <daveliu (at) freescale.com> 5 * port from the libata of linux kernel 6 */ 7 8 #include <libata.h> 9 10 u64 ata_id_n_sectors(u16 *id) 11 { 12 if (ata_id_has_lba(id)) { 13 if (ata_id_has_lba48(id)) 14 return ata_id_u64(id, ATA_ID_LBA48_SECTORS); 15 else 16 return ata_id_u32(id, ATA_ID_LBA_SECTORS); 17 } else { 18 return 0; 19 } 20 } 21 22 u32 ata_dev_classify(u32 sig) 23 { 24 u8 lbam, lbah; 25 26 lbam = (sig >> 16) & 0xff; 27 lbah = (sig >> 24) & 0xff; 28 29 if (((lbam == 0) && (lbah == 0)) || 30 ((lbam == 0x3c) && (lbah == 0xc3))) 31 return ATA_DEV_ATA; 32 33 if ((lbam == 0x14) && (lbah == 0xeb)) 34 return ATA_DEV_ATAPI; 35 36 if ((lbam == 0x69) && (lbah == 0x96)) 37 return ATA_DEV_PMP; 38 39 return ATA_DEV_UNKNOWN; 40 } 41 42 static void ata_id_string(const u16 *id, unsigned char *s, 43 unsigned int ofs, unsigned int len) 44 { 45 unsigned int c; 46 47 while (len > 0) { 48 c = id[ofs] >> 8; 49 *s = c; 50 s++; 51 52 c = id[ofs] & 0xff; 53 *s = c; 54 s++; 55 56 ofs++; 57 len -= 2; 58 } 59 } 60 61 void ata_id_c_string(const u16 *id, unsigned char *s, 62 unsigned int ofs, unsigned int len) 63 { 64 unsigned char *p; 65 66 ata_id_string(id, s, ofs, len - 1); 67 68 p = s + strnlen((char *)s, len - 1); 69 while (p > s && p[-1] == ' ') 70 p--; 71 *p = '\0'; 72 } 73 74 void ata_dump_id(u16 *id) 75 { 76 unsigned char serial[ATA_ID_SERNO_LEN + 1]; 77 unsigned char firmware[ATA_ID_FW_REV_LEN + 1]; 78 unsigned char product[ATA_ID_PROD_LEN + 1]; 79 u64 n_sectors; 80 81 /* Serial number */ 82 ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial)); 83 printf("S/N: %s\n\r", serial); 84 85 /* Firmware version */ 86 ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware)); 87 printf("Firmware version: %s\n\r", firmware); 88 89 /* Product model */ 90 ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product)); 91 printf("Product model number: %s\n\r", product); 92 93 /* Total sectors of device */ 94 n_sectors = ata_id_n_sectors(id); 95 printf("Capablity: %lld sectors\n\r", n_sectors); 96 97 printf ("id[49]: capabilities = 0x%04x\n" 98 "id[53]: field valid = 0x%04x\n" 99 "id[63]: mwdma = 0x%04x\n" 100 "id[64]: pio = 0x%04x\n" 101 "id[75]: queue depth = 0x%04x\n", 102 id[49], 103 id[53], 104 id[63], 105 id[64], 106 id[75]); 107 108 printf ("id[76]: sata capablity = 0x%04x\n" 109 "id[78]: sata features supported = 0x%04x\n" 110 "id[79]: sata features enable = 0x%04x\n", 111 id[76], 112 id[78], 113 id[79]); 114 115 printf ("id[80]: major version = 0x%04x\n" 116 "id[81]: minor version = 0x%04x\n" 117 "id[82]: command set supported 1 = 0x%04x\n" 118 "id[83]: command set supported 2 = 0x%04x\n" 119 "id[84]: command set extension = 0x%04x\n", 120 id[80], 121 id[81], 122 id[82], 123 id[83], 124 id[84]); 125 printf ("id[85]: command set enable 1 = 0x%04x\n" 126 "id[86]: command set enable 2 = 0x%04x\n" 127 "id[87]: command set default = 0x%04x\n" 128 "id[88]: udma = 0x%04x\n" 129 "id[93]: hardware reset result = 0x%04x\n", 130 id[85], 131 id[86], 132 id[87], 133 id[88], 134 id[93]); 135 } 136 137 void ata_swap_buf_le16(u16 *buf, unsigned int buf_words) 138 { 139 unsigned int i; 140 141 for (i = 0; i < buf_words; i++) 142 buf[i] = le16_to_cpu(buf[i]); 143 } 144
