1 #include <hal/ahci/ahci.h>
2 #include <hal/ahci/hba.h>
3 #include <hal/ahci/sata.h>
4 #include <hal/ahci/scsi.h>
6 #include <klibc/string.h>
7 #include <lunaix/mm/valloc.h>
8 #include <lunaix/mm/vmm.h>
9 #include <lunaix/spike.h>
10 #include <lunaix/syslog.h>
13 scsi_create_packet12(struct scsi_cdb12* cdb,
18 memset(cdb, 0, sizeof(*cdb));
20 cdb->lba_be = SCSI_FLIP(lba);
21 cdb->length = SCSI_FLIP(alloc_size);
25 scsi_create_packet16(struct scsi_cdb16* cdb,
30 memset(cdb, 0, sizeof(*cdb));
32 cdb->lba_be_hi = SCSI_FLIP((uint32_t)(lba >> 32));
33 cdb->lba_be_lo = SCSI_FLIP((uint32_t)lba);
34 cdb->length = SCSI_FLIP(alloc_size);
38 scsi_parse_capacity(struct hba_device* device, uint32_t* parameter)
40 if (device->cbd_size == SCSI_CDB16) {
42 SCSI_FLIP(*(parameter + 1)) | (SCSI_FLIP(*parameter) << 32);
43 device->block_size = SCSI_FLIP(*(parameter + 2));
45 // for READ_CAPACITY(10)
46 device->max_lba = SCSI_FLIP(*(parameter));
47 device->block_size = SCSI_FLIP(*(parameter + 1));
52 scsi_submit(struct hba_device* dev, struct blkio_req* io_req)
54 struct hba_port* port = dev->port;
55 struct hba_cmdh* header;
56 struct hba_cmdt* table;
58 int write = !!(io_req->flags & BLKIO_WRITE);
59 int slot = hba_prepare_cmd(port, &table, &header);
60 hba_bind_vbuf(header, table, io_req->vbuf);
62 header->options |= (HBA_CMDH_WRITE * (write == 1)) | HBA_CMDH_ATAPI;
64 size_t size = vbuf_size(io_req->vbuf);
65 uint32_t count = ICEIL(size, port->device->block_size);
67 struct sata_reg_fis* fis = (struct sata_reg_fis*)table->command_fis;
68 void* cdb = table->atapi_cmd;
69 sata_create_fis(fis, ATA_PACKET, (size << 8), 0);
70 fis->feature = 1 | ((!write) << 2);
72 if (port->device->cbd_size == SCSI_CDB16) {
73 scsi_create_packet16((struct scsi_cdb16*)cdb,
74 write ? SCSI_WRITE_BLOCKS_16 : SCSI_READ_BLOCKS_16,
78 scsi_create_packet12((struct scsi_cdb12*)cdb,
79 write ? SCSI_WRITE_BLOCKS_12 : SCSI_READ_BLOCKS_12,
80 io_req->blk_addr & (u32_t)-1,
85 *((uint8_t*)cdb + 1) = 3 << 5; // RPROTECT=011b 禁用保护检查
88 struct hba_cmd_state* cmds = valloc(sizeof(struct hba_cmd_state));
89 *cmds = (struct hba_cmd_state){ .cmd_table = table, .state_ctx = io_req };
90 ahci_post(port, cmds, slot);