X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/01a605198da7bc5883a3dfa96b38f4f7c04f67f9..bb7ce16533fb6c1384775dea6e1150e74c229daf:/lunaix-os/hal/ahci/utils.c

diff --git a/lunaix-os/hal/ahci/utils.c b/lunaix-os/hal/ahci/utils.c
index 279cd50..96d163b 100644
--- a/lunaix-os/hal/ahci/utils.c
+++ b/lunaix-os/hal/ahci/utils.c
@@ -1,31 +1,88 @@
-#include <hal/ahci/utils.h>
+#include <hal/ahci/ahci.h>
+#include <hal/ahci/hba.h>
+#include <hal/ahci/sata.h>
+#include <hal/ahci/scsi.h>
 #include <klibc/string.h>
 
-#define IDDEV_MAXLBA_OFFSET 60
-#define IDDEV_LSECSIZE_OFFSET 117
-#define IDDEV_WWN_OFFSET 108
-#define IDDEV_SERIALNUM_OFFSET 10
-#define IDDEV_MODELNUM_OFFSET 27
+#include <lunaix/spike.h>
+
+#define IDDEV_OFFMAXLBA 60
+#define IDDEV_OFFMAXLBA_EXT 230
+#define IDDEV_OFFLSECSIZE 117
+#define IDDEV_OFFWWN 108
+#define IDDEV_OFFSERIALNUM 10
+#define IDDEV_OFFMODELNUM 27
+#define IDDEV_OFFADDSUPPORT 69
+#define IDDEV_OFFALIGN 209
+#define IDDEV_OFFLPP 106
+#define IDDEV_OFFCAPABILITIES 49
+
+static uint32_t cdb_size[] = { SCSI_CDB12, SCSI_CDB16, 0, 0 };
 
 void
-ahci_parse_dev_info(struct ahci_device_info* dev_info, uint16_t* data)
+ahci_parse_dev_info(struct hba_device* dev_info, uint16_t* data)
 {
-    dev_info->max_lba = *((uint32_t*)(data + IDDEV_MAXLBA_OFFSET));
-    dev_info->sector_size = *((uint32_t*)(data + IDDEV_LSECSIZE_OFFSET));
-    memcpy(&dev_info->wwn, (uint8_t*)(data + IDDEV_WWN_OFFSET), 8);
-    if (!dev_info->sector_size) {
-        dev_info->sector_size = 512;
+    dev_info->max_lba = *((uint32_t*)(data + IDDEV_OFFMAXLBA));
+    dev_info->block_size = *((uint32_t*)(data + IDDEV_OFFLSECSIZE));
+    dev_info->cbd_size = cdb_size[(*data & 0x3)];
+    dev_info->wwn = *(uint64_t*)(data + IDDEV_OFFWWN);
+    dev_info->block_per_sec = 1 << (*(data + IDDEV_OFFLPP) & 0xf);
+    dev_info->alignment_offset = *(data + IDDEV_OFFALIGN) & 0x3fff;
+    dev_info->capabilities = *((uint32_t*)(data + IDDEV_OFFCAPABILITIES));
+
+    if (!dev_info->block_size) {
+        dev_info->block_size = 512;
+    }
+
+    if ((*(data + IDDEV_OFFADDSUPPORT) & 0x8)) {
+        dev_info->max_lba = *((uint64_t*)(data + IDDEV_OFFMAXLBA_EXT));
+        dev_info->flags |= HBA_DEV_FEXTLBA;
     }
-    ahci_parsestr(&dev_info->serial_num, data + IDDEV_SERIALNUM_OFFSET, 10);
-    ahci_parsestr(&dev_info->model, data + IDDEV_MODELNUM_OFFSET, 20);
+
+    ahci_parsestr(dev_info->serial_num, data + IDDEV_OFFSERIALNUM, 10);
+    ahci_parsestr(dev_info->model, data + IDDEV_OFFMODELNUM, 20);
 }
 
 void
 ahci_parsestr(char* str, uint16_t* reg_start, int size_word)
 {
-    for (int i = 0, j = 0; i < size_word; i++, j += 2) {
+    int j = 0;
+    for (int i = 0; i < size_word; i++, j += 2) {
         uint16_t reg = *(reg_start + i);
         str[j] = (char)(reg >> 8);
         str[j + 1] = (char)(reg & 0xff);
     }
+    str[j - 1] = '\0';
+    strrtrim(str);
+}
+
+int
+ahci_try_send(struct hba_port* port, int slot)
+{
+    int retries = 0, bitmask = 1 << slot;
+
+    // 确保端口是空闲的
+    wait_until(!(port->regs[HBA_RPxTFD] & (HBA_PxTFD_BSY | HBA_PxTFD_DRQ)));
+
+    hba_clear_reg(port->regs[HBA_RPxIS]);
+
+    while (retries < MAX_RETRY) {
+        // PxCI寄存器置位，告诉HBA这儿有个数据需要发送到SATA端口
+        port->regs[HBA_RPxCI] = bitmask;
+
+        wait_until_expire(!(port->regs[HBA_RPxCI] & bitmask), 1000000);
+
+        port->regs[HBA_RPxCI] &= ~bitmask; // ensure CI bit is cleared
+        if ((port->regs[HBA_RPxTFD] & HBA_PxTFD_ERR)) {
+            // 有错误
+            sata_read_error(port);
+            retries++;
+        } else {
+            break;
+        }
+    }
+
+    hba_clear_reg(port->regs[HBA_RPxIS]);
+
+    return retries < MAX_RETRY;
 }
\ No newline at end of file