feat: asynchronized SATA IO

[lunaix-os.git] / lunaix-os / includes / hal / ahci / hba.h

diff --git a/lunaix-os/includes/hal/ahci/hba.h b/lunaix-os/includes/hal/ahci/hba.h
index c868c6ff1e740c70323ae2783626cb9b960f41b9..c60536d6d14b3707796ad76261c90c60bafc30ee 100644 (file)
--- a/lunaix-os/includes/hal/ahci/hba.h
+++ b/lunaix-os/includes/hal/ahci/hba.h
@@ -1,7 +1,9 @@
 #ifndef __LUNAIX_HBA_H
 #define __LUNAIX_HBA_H
 
-#include <stdint.h>
+#include <lunaix/blkio.h>
+#include <lunaix/buffer.h>
+#include <lunaix/types.h>
 
 #define HBA_RCAP 0
 #define HBA_RGHC 1
@@ -33,6 +35,8 @@
 #define HBA_PxINTR_DMA (1 << 2)
 #define HBA_PxINTR_DHR (1)
 #define HBA_PxINTR_DPS (1 << 5)
+#define HBA_PxINTR_TFEE (1 << 30)
+#define HBA_PxINTR_IFE (1 << 27)
 #define HBA_PxTFD_ERR (1)
 #define HBA_PxTFD_BSY (1 << 7)
 #define HBA_PxTFD_DRQ (1 << 3)
@@ -45,6 +49,8 @@
 #define HBA_RPxSSTS_IF(x) (((x) >> 4) & 0xf)
 #define HBA_RPxSSTS_PHYSTATE(x) ((x)&0xf)
 
+#define hba_clear_reg(reg) (reg) = -1
+
 #define HBA_DEV_SIG_ATAPI 0xeb140101
 #define HBA_DEV_SIG_ATA 0x00000101
 
@@ -60,6 +66,8 @@ typedef unsigned int hba_reg_t;
 #define HBA_CMDH_CLR_BUSY (1 << 10)
 #define HBA_CMDH_PRDT_LEN(entries) (((entries)&0xffff) << 16)
 
+#define HBA_MAX_PRDTE 4
+
 struct hba_cmdh
 {
     uint16_t options;
@@ -83,7 +91,7 @@ struct hba_cmdt
     uint8_t command_fis[64];
     uint8_t atapi_cmd[16];
     uint8_t reserved[0x30];
-    struct hba_prdte entries[3];
+    struct hba_prdte entries[HBA_MAX_PRDTE];
 } __HBA_PACKED__;
 
 #define HBA_DEV_FEXTLBA 1
@@ -100,8 +108,13 @@ struct hba_device
     uint32_t block_size;
     uint64_t wwn;
     uint8_t cbd_size;
-    uint8_t last_error;
-    uint8_t last_status;
+    struct
+    {
+        uint8_t sense_key;
+        uint8_t error;
+        uint8_t status;
+        uint8_t reserve;
+    } last_result;
     uint32_t alignment_offset;
     uint32_t block_per_sec;
     uint32_t capabilities;
@@ -110,22 +123,28 @@ struct hba_device
     struct
     {
         int (*identify)(struct hba_device* dev);
-        int (*read_buffer)(struct hba_device* dev,
-                           uint64_t lba,
-                           void* buffer,
-                           uint32_t size);
-        int (*write_buffer)(struct hba_device* dev,
-                            uint64_t lba,
-                            void* buffer,
-                            uint32_t size);
+        void (*submit)(struct hba_device* dev, struct blkio_req* io_req);
     } ops;
 };
 
+struct hba_cmd_state
+{
+    struct hba_cmdt* cmd_table;
+    void* state_ctx;
+};
+
+struct hba_cmd_context
+{
+    struct hba_cmd_state* issued[32];
+    u32_t tracked_ci;
+};
+
 struct hba_port
 {
     volatile hba_reg_t* regs;
     unsigned int ssts;
     struct hba_cmdh* cmdlst;
+    struct hba_cmd_context cmdctx;
     void* fis;
     struct hba_device* device;
 };
@@ -143,8 +162,14 @@ struct ahci_hba
 int
 hba_prepare_cmd(struct hba_port* port,
                 struct hba_cmdt** cmdt,
-                struct hba_cmdh** cmdh,
-                void* buffer,
-                unsigned int size);
+                struct hba_cmdh** cmdh);
+
+int
+hba_bind_vbuf(struct hba_cmdh* cmdh,
+              struct hba_cmdt* cmdt,
+              struct vecbuf* vbuf);
+
+int
+hba_bind_sbuf(struct hba_cmdh* cmdh, struct hba_cmdt* cmdt, struct membuf mbuf);
 
 #endif /* __LUNAIX_HBA_H */