#define HBA_FIS_SIZE 256
#define HBA_CLB_SIZE 1024
-#define HBA_MY_IE (HBA_PxINTR_DHR | HBA_PxINTR_TFEE)
+#define HBA_MY_IE (HBA_PxINTR_DHR | HBA_PxINTR_TFE | HBA_PxINTR_OF)
// #define DO_HBA_FULL_RESET
LOG_MODULE("AHCI")
-struct ahci_hba hba;
+struct llist_header ahcis;
static char sata_ifs[][20] = { "Not detected",
"SATA I (1.5Gbps)",
void
ahci_register_device(struct hba_device* hbadev);
-unsigned int
-ahci_get_port_usage()
-{
- return hba.ports_bmp;
-}
-
-struct hba_port*
-ahci_get_port(unsigned int index)
-{
- if (index >= 32) {
- return 0;
- }
- return hba.ports[index];
-}
+void*
+ahci_driver_init(struct pci_device* ahci_dev);
void
__hba_reset_port(hba_reg_t* port_reg)
}
// 如果port未响应，则继续执行重置
port_reg[HBA_RPxSCTL] = (port_reg[HBA_RPxSCTL] & ~0xf) | 1;
- io_delay(100000); //等待至少一毫秒，差不多就行了
+ io_delay(100000); // 等待至少一毫秒，差不多就行了
port_reg[HBA_RPxSCTL] &= ~0xf;
}
void
ahci_init()
{
- struct pci_device* ahci_dev = pci_get_device_by_class(AHCI_HBA_CLASS);
- assert_msg(ahci_dev, "AHCI: Not found.");
+ llist_init_head(&ahcis);
+ pci_add_driver("Serial ATA AHCI", AHCI_HBA_CLASS, 0, 0, ahci_driver_init);
+}
+void*
+ahci_driver_init(struct pci_device* ahci_dev)
+{
struct pci_base_addr* bar6 = &ahci_dev->bar[5];
assert_msg(bar6->type & BAR_TYPE_MMIO, "AHCI: BAR#6 is not MMIO.");
pci_write_cspace(ahci_dev->cspace_base, PCI_REG_STATUS_CMD, cmd);
- pci_setup_msi(ahci_dev, isrm_ivexalloc(__ahci_hba_isr));
+ int iv = isrm_ivexalloc(__ahci_hba_isr);
+ pci_setup_msi(ahci_dev, iv);
+
+ struct ahci_driver* ahci_drv = vzalloc(sizeof(*ahci_drv));
+ struct ahci_hba* hba = &ahci_drv->hba;
+ ahci_drv->id = iv;
- memset(&hba, 0, sizeof(hba));
+ llist_append(&ahcis, &ahci_drv->ahci_drvs);
- hba.base = (hba_reg_t*)ioremap(bar6->start, bar6->size);
+ hba->base = (hba_reg_t*)ioremap(bar6->start, bar6->size);
#ifdef DO_HBA_FULL_RESET
// 重置HBA
- hba.base[HBA_RGHC] |= HBA_RGHC_RESET;
- wait_until(!(hba.base[HBA_RGHC] & HBA_RGHC_RESET));
+ hba->base[HBA_RGHC] |= HBA_RGHC_RESET;
+ wait_until(!(hba->base[HBA_RGHC] & HBA_RGHC_RESET));
#endif
// 启用AHCI工作模式，启用中断
- hba.base[HBA_RGHC] |= HBA_RGHC_ACHI_ENABLE;
- hba.base[HBA_RGHC] |= HBA_RGHC_INTR_ENABLE;
+ hba->base[HBA_RGHC] |= HBA_RGHC_ACHI_ENABLE;
+ hba->base[HBA_RGHC] |= HBA_RGHC_INTR_ENABLE;
// As per section 3.1.1, this is 0 based value.
- hba_reg_t cap = hba.base[HBA_RCAP];
- hba_reg_t pmap = hba.base[HBA_RPI];
+ hba_reg_t cap = hba->base[HBA_RCAP];
+ hba_reg_t pmap = hba->base[HBA_RPI];
- hba.ports_num = (cap & 0x1f) + 1; // CAP.PI
- hba.cmd_slots = (cap >> 8) & 0x1f; // CAP.NCS
- hba.version = hba.base[HBA_RVER];
- hba.ports_bmp = pmap;
+ hba->ports_num = (cap & 0x1f) + 1; // CAP.PI
+ hba->cmd_slots = (cap >> 8) & 0x1f; // CAP.NCS
+ hba->version = hba->base[HBA_RVER];
+ hba->ports_bmp = pmap;
/* ------ HBA端口配置 ------ */
- uintptr_t clb_pg_addr, fis_pg_addr, clb_pa, fis_pa;
+ ptr_t clb_pg_addr = 0, fis_pg_addr = 0;
+ ptr_t clb_pa = 0, fis_pa = 0;
+
for (size_t i = 0, fisp = 0, clbp = 0; i < 32;
i++, pmap >>= 1, fisp = (fisp + 1) % 16, clbp = (clbp + 1) % 4) {
if (!(pmap & 0x1)) {
struct hba_port* port =
(struct hba_port*)valloc(sizeof(struct hba_port));
hba_reg_t* port_regs =
- (hba_reg_t*)(&hba.base[HBA_RPBASE + i * HBA_RPSIZE]);
+ (hba_reg_t*)(&hba->base[HBA_RPBASE + i * HBA_RPSIZE]);
#ifndef DO_HBA_FULL_RESET
__hba_reset_port(port_regs);
if (!clbp) {
// 每页最多4个命令队列
clb_pa = pmm_alloc_page(KERNEL_PID, PP_FGLOCKED);
- clb_pg_addr = ioremap(clb_pa, 0x1000);
- memset(clb_pg_addr, 0, 0x1000);
+ clb_pg_addr = (ptr_t)ioremap(clb_pa, 0x1000);
+ memset((void*)clb_pg_addr, 0, 0x1000);
}
if (!fisp) {
// 每页最多16个FIS
fis_pa = pmm_alloc_page(KERNEL_PID, PP_FGLOCKED);
- fis_pg_addr = ioremap(fis_pa, 0x1000);
- memset(fis_pg_addr, 0, 0x1000);
+ fis_pg_addr = (ptr_t)ioremap(fis_pa, 0x1000);
+ memset((void*)fis_pg_addr, 0, 0x1000);
}
/* 重定向CLB与FIS */
port_regs[HBA_RPxCLB] = clb_pa + clbp * HBA_CLB_SIZE;
port_regs[HBA_RPxFB] = fis_pa + fisp * HBA_FIS_SIZE;
- *port = (struct hba_port){ .regs = port_regs,
- .ssts = port_regs[HBA_RPxSSTS],
- .cmdlst = clb_pg_addr + clbp * HBA_CLB_SIZE,
- .fis = fis_pg_addr + fisp * HBA_FIS_SIZE };
+ *port = (struct hba_port){
+ .regs = port_regs,
+ .ssts = port_regs[HBA_RPxSSTS],
+ .cmdlst = (struct hba_cmdh*)(clb_pg_addr + clbp * HBA_CLB_SIZE),
+ .fis = (void*)(fis_pg_addr + fisp * HBA_FIS_SIZE),
+ .hba = hba
+ };
/* 初始化端口，并置于就绪状态 */
port_regs[HBA_RPxCI] = 0;
hba_clear_reg(port_regs[HBA_RPxSERR]);
- hba.ports[i] = port;
+ hba->ports[i] = port;
if (!HBA_RPxSSTS_IF(port->ssts)) {
continue;
}
struct hba_device* hbadev = port->device;
- kprintf(KINFO "sata%d: %s, sector_size=%dB, sector=%d\n",
+ kprintf(KINFO "sata%d: %s, blk_size=%d, blk=0..%d\n",
i,
hbadev->model,
hbadev->block_size,
- (uint32_t)hbadev->max_lba);
+ (u32_t)hbadev->max_lba);
ahci_register_device(hbadev);
}
+
+ return ahci_drv;
}
void
block_mount(bdev, ahci_fsexport);
}
-void
-ahci_list_device()
-{
- kprintf(KINFO "Version: %x; Ports: %d; Slot: %d\n",
- hba.version,
- hba.ports_num,
- hba.cmd_slots);
- struct hba_port* port;
- for (size_t i = 0; i < 32; i++) {
- port = hba.ports[i];
-
- // 愚蠢的gcc似乎认为 struct hba_port* 不可能为空
- // 所以将这个非常关键的if给优化掉了。
- // 这里将指针强制转换为整数，欺骗gcc :)
- if ((uintptr_t)port == 0) {
- continue;
- }
-
- int device_state = HBA_RPxSSTS_IF(port->ssts);
-
- kprintf("\t Port %d: %s (%x)\n",
- i,
- &sata_ifs[device_state],
- port->device->flags);
-
- struct hba_device* dev_info = port->device;
- if (!device_state || !dev_info) {
- continue;
- }
- kprintf("\t\t capacity: %d KiB\n",
- (dev_info->max_lba * dev_info->block_size) >> 10);
- kprintf("\t\t block size: %dB\n", dev_info->block_size);
- kprintf("\t\t block/sector: %d\n", dev_info->block_per_sec);
- kprintf("\t\t alignment: %dB\n", dev_info->alignment_offset);
- kprintf("\t\t capabilities: %x\n", dev_info->capabilities);
- kprintf("\t\t model: %s\n", &dev_info->model);
- kprintf("\t\t serial: %s\n", &dev_info->serial_num);
- }
-}
-
int
__get_free_slot(struct hba_port* port)
{
hba_reg_t pxsact = port->regs[HBA_RPxSACT];
hba_reg_t pxci = port->regs[HBA_RPxCI];
hba_reg_t free_bmp = pxsact | pxci;
- uint32_t i = 0;
- for (; i <= hba.cmd_slots && (free_bmp & 0x1); i++, free_bmp >>= 1)
+ u32_t i = 0;
+ for (; i <= port->hba->cmd_slots && (free_bmp & 0x1); i++, free_bmp >>= 1)
;
- return i | -(i > hba.cmd_slots);
+ return i | -(i > port->hba->cmd_slots);
}
void
sata_create_fis(struct sata_reg_fis* cmd_fis,
- uint8_t command,
- uint64_t lba,
- uint16_t sector_count)
+ u8_t command,
+ lba_t lba,
+ u16_t sector_count)
{
cmd_fis->head.type = SATA_REG_FIS_H2D;
cmd_fis->head.options = SATA_REG_FIS_COMMAND;
int
hba_bind_sbuf(struct hba_cmdh* cmdh, struct hba_cmdt* cmdt, struct membuf mbuf)
{
- assert_msg(mbuf.size <= 0x400000, "HBA: Buffer too big");
+ assert_msg(mbuf.size <= 0x400000U, "HBA: Buffer too big");
cmdh->prdt_len = 1;
- cmdt->entries[0] = (struct hba_prdte){ .data_base = vmm_v2p(mbuf.buffer),
- .byte_count = mbuf.size - 1 };
+ cmdt->entries[0] =
+ (struct hba_prdte){ .data_base = vmm_v2p((ptr_t)mbuf.buffer),
+ .byte_count = mbuf.size - 1 };
+
+ return 0;
}
int
do {
assert_msg(i < HBA_MAX_PRDTE, "HBA: Too many PRDTEs");
- assert_msg(pos->buf.size <= 0x400000, "HBA: Buffer too big");
+ assert_msg(pos->buf.size <= 0x400000U, "HBA: Buffer too big");
cmdt->entries[i++] =
- (struct hba_prdte){ .data_base = vmm_v2p(pos->buf.buffer),
+ (struct hba_prdte){ .data_base = vmm_v2p((ptr_t)pos->buf.buffer),
.byte_count = pos->buf.size - 1 };
pos = list_entry(pos->components.next, struct vecbuf, components);
} while (pos != vbuf);
cmdh->prdt_len = i + 1;
+
+ return 0;
}
int
memset(cmd_header, 0, sizeof(*cmd_header));
// 将命令表挂到命令头上
- cmd_header->cmd_table_base = vmm_v2p(cmd_table);
+ cmd_header->cmd_table_base = vmm_v2p((ptr_t)cmd_table);
cmd_header->options =
HBA_CMDH_FIS_LEN(sizeof(struct sata_reg_fis)) | HBA_CMDH_CLR_BUSY;
port->regs[HBA_RPxIE] &= ~HBA_MY_IE;
// 预备DMA接收缓存，用于存放HBA传回的数据
- uint16_t* data_in = (uint16_t*)valloc_dma(512);
+ u16_t* data_in = (u16_t*)valloc_dma(512);
int slot = hba_prepare_cmd(port, &cmd_table, &cmd_header);
hba_bind_sbuf(
port->device = vzalloc(sizeof(struct hba_device));
port->device->port = port;
+ port->device->hba = port->hba;
// 在命令表中构建命令FIS
struct sata_reg_fis* cmd_fis = (struct sata_reg_fis*)cmd_table->command_fis;
goto fail;
}
- scsi_parse_capacity(port->device, (uint32_t*)data_in);
+ scsi_parse_capacity(port->device, (u32_t*)data_in);
done:
// reset interrupt status and unmask D2HR interrupt
git://scm.lunaixsky.com / lunaix-os.git / blobdiff