refactor: abstract out the code for prdte creation (by imposing a constrain on buffer...

[lunaix-os.git] / lunaix-os / hal / ahci / ata.c

diff --git a/lunaix-os/hal/ahci/ata.c b/lunaix-os/hal/ahci/ata.c
index 486d69d7c76ac7a551c125f96c0da4e68b10b845..f6ff7c15a43acc04f2ac4be1b4c1353e524ee727 100644 (file)
--- a/lunaix-os/hal/ahci/ata.c
+++ b/lunaix-os/hal/ahci/ata.c
@@ -16,7 +16,7 @@ __sata_buffer_io(struct hba_port* port,
 
     struct hba_cmdh* header;
     struct hba_cmdt* table;
-    int slot = hba_alloc_slot(port, &table, &header, 0);
+    int slot = hba_prepare_cmd(port, &table, &header, buffer, size);
     int bitmask = 1 << slot;
 
     // 确保端口是空闲的
@@ -24,9 +24,6 @@ __sata_buffer_io(struct hba_port* port,
 
     port->regs[HBA_RPxIS] = 0;
 
-    table->entries[0] = (struct hba_prdte){ .byte_count = size - 1,
-                                            .data_base = vmm_v2p(buffer) };
-    header->prdt_len = 1;
     header->options |= HBA_CMDH_WRITE * (write == 1);
 
     uint16_t count = ICEIL(size, port->device->block_size);
@@ -95,4 +92,5 @@ sata_read_error(struct hba_port* port)
 {
     uint32_t tfd = port->regs[HBA_RPxTFD];
     port->device->last_error = (tfd >> 8) & 0xff;
+    port->device->last_status = tfd & 0xff;
 }
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