[kernel][driver][ata] Add SATA PIO read sector support

JasonBrave · Jul 31, 2022 · 26bbbf5 · 26bbbf5
1 parent 696ed2c
commit 26bbbf5
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/kernel/driver/ahci/ahci.c b/kernel/driver/ahci/ahci.c
@@ -199,6 +199,7 @@ int ahci_exec_pio_in(struct AHCIController* ahci, unsigned int port, uint8_t cmd
 	fis->lba_47_40 = (lba >> 40) & 0xff;
 	fis->count_7_0 = cont & 0xff;
 	fis->count_15_8 = (cont >> 8) & 0xff;
+	fis->device = (1 << 6); // Bit 6 shall be set to one
 	// Set receive buffer
 	cmd_table->prdt[0].dba = V2P(buf);
 	cmd_table->prdt[0].dba_upper = 0;

diff --git a/kernel/driver/ata/ata.c b/kernel/driver/ata/ata.c
@@ -146,7 +146,9 @@ int ata_read(void* private, unsigned int begin, int count, void* buf) {
 			}
 		}
 	} else if (dev->transport == ATA_TRANSPORT_SERIAL_ATA) {
-		panic("SATA not supported");
+		if (sata_exec_pio_in(&dev->sata, ATA_COMMAND_READ_SECTOR, begin, count, buf, count)) {
+			return ERROR_READ_FAIL;
+		}
 	}
 	return 0;
 }