*
*/
#include <hal/ahci/ahci.h>
+#include <hal/ahci/hba.h>
+#include <hal/ahci/sata.h>
+#include <hal/ahci/scsi.h>
#include <hal/ahci/utils.h>
+
#include <hal/pci.h>
#include <klibc/string.h>
#include <lunaix/mm/mmio.h>
void
__ahci_hba_isr(isr_param param);
+int
+ahci_init_device(struct hba_port* port);
+
void
ahci_init()
{
continue;
}
- struct ahci_port* port =
- (struct ahci_port*)valloc(sizeof(struct ahci_port));
+ 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]);
port_regs[HBA_RPxCLB] = clb_pa + clbp * HBA_CLB_SIZE;
port_regs[HBA_RPxFB] = fis_pa + fisp * HBA_FIS_SIZE;
- *port = (struct ahci_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 = clb_pg_addr + clbp * HBA_CLB_SIZE,
+ .fis = fis_pg_addr + fisp * HBA_FIS_SIZE };
/* 初始化端口，并置于就绪状态 */
port_regs[HBA_RPxCI] = 0;
wait_until(!(port_regs[HBA_RPxCMD] & HBA_PxCMD_CR));
port_regs[HBA_RPxCMD] |= HBA_PxCMD_FRE;
port_regs[HBA_RPxCMD] |= HBA_PxCMD_ST;
- if (!ahci_identify_device(port)) {
- kprintf(KERROR "fail to probe device info");
+
+ if (!ahci_init_device(port)) {
+ kprintf(KERROR "fail to init device");
}
}
}
hba.version,
hba.ports_num,
hba.cmd_slots);
- struct ahci_port* port;
+ 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 ahci_port* 不可能为空
+ // 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) {
&sata_ifs[device_state],
port->regs[HBA_RPxSIG]);
- struct ahci_device_info* dev_info = port->device_info;
+ 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->sector_size) >> 10);
- kprintf("\t\t sector size: %dB\n", dev_info->sector_size);
+ (dev_info->max_lba * dev_info->block_size) >> 10);
+ kprintf("\t\t sector size: %dB\n", dev_info->block_size);
kprintf("\t\t model: %s\n", &dev_info->model);
kprintf("\t\t serial: %s\n", &dev_info->serial_num);
}
}
int
-achi_alloc_slot(struct ahci_port* port)
+__get_free_slot(struct hba_port* port)
{
hba_reg_t pxsact = port->regs[HBA_RPxSACT];
hba_reg_t pxci = port->regs[HBA_RPxCI];
}
void
-__ahci_create_fis(struct sata_reg_fis* cmd_fis,
- uint8_t command,
- uint32_t lba_lo,
- uint32_t lba_hi,
- uint16_t sector_count)
+sata_create_fis(struct sata_reg_fis* cmd_fis,
+ uint8_t command,
+ uint32_t lba_lo,
+ uint32_t lba_hi,
+ uint16_t sector_count)
{
cmd_fis->head.type = SATA_REG_FIS_H2D;
cmd_fis->head.options = SATA_REG_FIS_COMMAND;
}
int
-ahci_identify_device(struct ahci_port* port)
+hba_alloc_slot(struct hba_port* port,
+ struct hba_cmdt** cmdt,
+ struct hba_cmdh** cmdh,
+ uint16_t header_options)
{
- int slot = achi_alloc_slot(port);
- assert_msg(slot >= 0, "No free slot");
-
- // 清空任何待响应的中断
- port->regs[HBA_RPxIS] = 0;
-
- /* 发送ATA命令，参考：SATA AHCI Spec Rev.1.3.1, section 5.5 */
+ int slot = __get_free_slot(port);
+ assert_msg(slot >= 0, "HBA: No free slot");
// 构建命令头（Command Header）和命令表（Command Table）
- struct ahci_hba_cmdh* cmd_header = &port->cmdlst[slot];
- struct ahci_hba_cmdt* cmd_table = valloc_dma(sizeof(struct ahci_hba_cmdt));
+ struct hba_cmdh* cmd_header = &port->cmdlst[slot];
+ struct hba_cmdt* cmd_table = valloc_dma(sizeof(struct hba_cmdt));
memset(cmd_header, 0, sizeof(*cmd_header));
memset(cmd_table, 0, sizeof(*cmd_table));
+ // 将命令表挂到命令头上
+ cmd_header->prdt_len = 1;
+ cmd_header->cmd_table_base = vmm_v2p(cmd_table);
+ cmd_header->options = HBA_CMDH_FIS_LEN(sizeof(struct sata_reg_fis)) |
+ HBA_CMDH_CLR_BUSY | (header_options & ~0x1f);
+
+ *cmdh = cmd_header;
+ *cmdt = cmd_table;
+
+ return slot;
+}
+
+int
+ahci_init_device(struct hba_port* port)
+{
+ /* 发送ATA命令，参考：SATA AHCI Spec Rev.1.3.1, section 5.5 */
+ struct hba_cmdt* cmd_table;
+ struct hba_cmdh* cmd_header;
+
+ int slot = hba_alloc_slot(port, &cmd_table, &cmd_header, 0);
+
+ // 清空任何待响应的中断
+ port->regs[HBA_RPxIS] = 0;
+ port->device = valloc(sizeof(struct hba_device));
+ port->device->signature = port->regs[HBA_RPxSIG];
+
// 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);
cmd_table->entries[0] =
- (struct ahci_hba_prdte){ .data_base = vmm_v2p(data_in),
- .byte_count = 511 }; // byte_count是从0开始算的
+ (struct hba_prdte){ .data_base = vmm_v2p(data_in),
+ .byte_count = 511 }; // byte_count是从0开始算的
+ cmd_header->prdt_len = 1;
// 在命令表中构建命令FIS
struct sata_reg_fis* cmd_fis = (struct sata_reg_fis*)cmd_table->command_fis;
// 根据设备类型使用合适的命令
- if (port->regs[HBA_RPxSIG] == HBA_DEV_SIG_ATA) {
+ if (port->device->signature == HBA_DEV_SIG_ATA) {
// ATA 一般为硬盘
- __ahci_create_fis(cmd_fis, ATA_IDENTIFY_DEVICE, 0, 0, 0);
+ sata_create_fis(cmd_fis, ATA_IDENTIFY_DEVICE, 0, 0, 0);
} else {
// ATAPI 一般为光驱，软驱，或者磁带机
- __ahci_create_fis(cmd_fis, ATA_IDENTIFY_PAKCET_DEVICE, 0, 0, 0);
+ sata_create_fis(cmd_fis, ATA_IDENTIFY_PAKCET_DEVICE, 0, 0, 0);
}
- // 将命令表挂到命令头上
- cmd_header->cmd_table_base = vmm_v2p(cmd_table);
- cmd_header->prdt_len = 1;
- cmd_header->options |=
- HBA_CMDH_FIS_LEN(sizeof(*cmd_fis)) | HBA_CMDH_CLR_BUSY;
-
// 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] = (1 << slot);
解析IDENTIFY DEVICE传回来的数据。
参考：
* ATA/ATAPI Command Set - 3 (ACS-3), Section 7.12.7
+ */
+ ahci_parse_dev_info(port->device, data_in);
- 注意：ATAPI无法通过IDENTIFY PACKET DEVICE 获取容量信息。
- 这需要另外使用特殊的SCSI命令中的READ CAPACITY(16)
- 来获取，这种命令需要使用ATA的PACKET命令发出。
+ if (port->device->signature == HBA_DEV_SIG_ATA) {
+ goto done;
+ }
+
+ /*
+ 注意：ATAPI设备是无法通过IDENTIFY PACKET DEVICE 获取容量信息的。
+ 我们需要使用SCSI命令的READ_CAPACITY(16)进行获取。
+ 步骤如下：
+ 1. 因为ATAPI走的是SCSI，而AHCI对此专门进行了SATA的封装，
+ 也就是通过SATA的PACKET命令对SCSI命令进行封装。所以我们
+ 首先需要构建一个PACKET命令的FIS
+ 2. 接着，在ACMD中构建命令READ_CAPACITY的CDB - 一种SCSI命令的封装
+ 3. 然后把cmd_header->options的A位置位，表示这是一个送往ATAPI的命令。
+ 一点细节：
+ 1. HBA往底层SATA控制器发送PACKET FIS
+ 2. SATA控制器回复PIO Setup FIS
+ 3. HBA读入ACMD中的CDB，打包成Data FIS进行答复
+ 4. SATA控制器解包，拿到CDB，通过SCSI协议转发往ATAPI设备。
+ 5. ATAPI设备回复Return Parameter，SATA通过DMA Setup FIS
+ 发起DMA请求，HBA介入，将Return Parameter写入我们在PRDT
+ 里设置的data_in位置。
+ 4. 最后照常等待HBA把结果写入data_in，然后直接解析就好了。
参考：
* ATA/ATAPI Command Set - 3 (ACS-3), Section 7.18
* SATA AHCI HBA Spec, Section 5.3.7
* SCSI Command Reference Manual, Section 3.26
*/
- port->device_info = valloc(sizeof(struct ahci_device_info));
- ahci_parse_dev_info(port->device_info, data_in);
+ sata_create_fis(cmd_fis, ATA_PACKET, 512 << 8, 0, 0);
+ struct scsi_cdb16* cdb16 = (struct scsi_cdb16*)cmd_table->atapi_cmd;
+ scsi_create_packet16(cdb16, SCSI_READ_CAPACITY_16, 0, 0, 512);
+ cdb16->misc1 = 0x10; // service action
+ cmd_header->transferred_size = 0;
+ cmd_header->options |= HBA_CMDH_ATAPI;
+
+ port->regs[HBA_RPxCI] = (1 << slot);
+ wait_until(!(port->regs[HBA_RPxCI] & (1 << slot)));
+
+ scsi_parse_capacity(port->device, (uint32_t*)data_in);
+done:
vfree_dma(data_in);
vfree_dma(cmd_table);
--- /dev/null
+#include <hal/ahci/hba.h>
+#include <hal/ahci/scsi.h>
+#include <hal/ahci/utils.h>
+
+#include <klibc/string.h>
+#include <lunaix/spike.h>
+
+void
+scsi_create_packet12(struct scsi_cdb12* cdb,
+ uint8_t opcode,
+ uint32_t lba,
+ uint32_t alloc_size)
+{
+ memset(cdb, 0, sizeof(*cdb));
+ cdb->opcode = opcode;
+ cdb->lba_be = SCSI_FLIP(lba);
+ cdb->length = alloc_size;
+}
+
+void
+scsi_create_packet16(struct scsi_cdb16* cdb,
+ uint8_t opcode,
+ uint32_t lba_hi,
+ uint32_t lba_lo,
+ uint32_t alloc_size)
+{
+ memset(cdb, 0, sizeof(*cdb));
+ cdb->opcode = opcode;
+ cdb->lba_be_hi = SCSI_FLIP(lba_hi);
+ cdb->lba_be_lo = SCSI_FLIP(lba_lo);
+ cdb->length = alloc_size;
+}
+
+void
+scsi_parse_capacity(struct hba_device* device, uint32_t* parameter)
+{
+ device->max_lba = SCSI_FLIP(*(parameter + 1));
+ device->block_size = SCSI_FLIP(*(parameter + 2));
+}
\ No newline at end of file
+#include <hal/ahci/hba.h>
#include <hal/ahci/utils.h>
#include <klibc/string.h>
#define IDDEV_MODELNUM_OFFSET 27
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));
+ dev_info->block_size = *((uint32_t*)(data + IDDEV_LSECSIZE_OFFSET));
+ dev_info->cbd_size = (*data & 0x3) ? 12 : 16;
memcpy(&dev_info->wwn, (uint8_t*)(data + IDDEV_WWN_OFFSET), 8);
- if (!dev_info->sector_size) {
- dev_info->sector_size = 512;
+ if (!dev_info->block_size) {
+ dev_info->block_size = 512;
}
ahci_parsestr(&dev_info->serial_num, data + IDDEV_SERIALNUM_OFFSET, 10);
ahci_parsestr(&dev_info->model, data + IDDEV_MODELNUM_OFFSET, 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';
}
\ No newline at end of file
#ifndef __LUNAIX_AHCI_H
#define __LUNAIX_AHCI_H
-#include <stdint.h>
-
/*
* Macro naming rule:
* HBA_R[xxx]
#define AHCI_HBA_CLASS 0x10601
-#define HBA_RCAP 0
-#define HBA_RGHC 1
-#define HBA_RIS 2
-#define HBA_RPI 3
-#define HBA_RVER 4
-
-#define HBA_RPBASE (0x40)
-#define HBA_RPSIZE (0x80 >> 2)
-#define HBA_RPxCLB 0
-#define HBA_RPxFB 2
-#define HBA_RPxIS 4
-#define HBA_RPxIE 5
-#define HBA_RPxCMD 6
-#define HBA_RPxTFD 8
-#define HBA_RPxSIG 9
-#define HBA_RPxSSTS 10
-#define HBA_RPxSCTL 11
-#define HBA_RPxSERR 12
-#define HBA_RPxSACT 13
-#define HBA_RPxCI 14
-#define HBA_RPxSNTF 15
-#define HBA_RPxFBS 16
-
-#define HBA_PxCMD_FRE (1 << 4)
-#define HBA_PxCMD_CR (1 << 15)
-#define HBA_PxCMD_FR (1 << 14)
-#define HBA_PxCMD_ST (1)
-#define HBA_PxINTR_DMA (1 << 2)
-#define HBA_PxINTR_D2HR (1)
-
-#define HBA_RGHC_ACHI_ENABLE (1 << 31)
-#define HBA_RGHC_INTR_ENABLE (1 << 1)
-#define HBA_RGHC_RESET 1
-
-#define HBA_RPxSSTS_PWR(x) (((x) >> 8) & 0xf)
-#define HBA_RPxSSTS_IF(x) (((x) >> 4) & 0xf)
-#define HBA_RPxSSTS_PHYSTATE(x) ((x)&0xf)
-
-#define HBA_DEV_SIG_ATAPI 0xeb140101
-#define HBA_DEV_SIG_ATA 0x00000101
-
-#define __HBA_PACKED__ __attribute__((packed))
-
-typedef unsigned int hba_reg_t;
-
-#define HBA_CMDH_FIS_LEN(fis_bytes) (((fis_bytes) / 4) & 0x1f)
-#define HBA_CMDH_ATAPI (1 << 5)
-#define HBA_CMDH_WRITE (1 << 6)
-#define HBA_CMDH_PREFETCH (1 << 7)
-#define HBA_CMDH_R (1 << 8)
-#define HBA_CMDH_CLR_BUSY (1 << 10)
-#define HBA_CMDH_PRDT_LEN(entries) (((entries)&0xffff) << 16)
-
-struct ahci_hba_cmdh
-{
- uint16_t options;
- uint16_t prdt_len;
- uint32_t transferred_size;
- uint32_t cmd_table_base;
- uint32_t reserved[5];
-} __HBA_PACKED__;
-
-#define HBA_PRDTE_BYTE_CNT(cnt) ((cnt & 0x3FFFFF) | 0x1)
-
-struct ahci_hba_prdte
-{
- uint32_t data_base;
- uint32_t reserved[2];
- uint32_t byte_count;
-} __HBA_PACKED__;
-
-struct ahci_hba_cmdt
-{
- uint8_t command_fis[64];
- uint8_t atapi_cmd[16];
- uint8_t reserved[0x30];
- struct ahci_hba_prdte entries[3];
-} __HBA_PACKED__;
-
-#define SATA_REG_FIS_D2H 0x34
-#define SATA_REG_FIS_H2D 0x27
-#define SATA_REG_FIS_COMMAND 0x80
-#define SATA_LBA_COMPONENT(lba, offset) ((((lba_lo) >> (offset)) & 0xff))
-
-struct sata_fis_head
-{
- uint8_t type;
- uint8_t options;
- uint8_t status_cmd;
- uint8_t feat_err;
-} __HBA_PACKED__;
-
-struct sata_reg_fis
-{
- struct sata_fis_head head;
-
- uint8_t lba0, lba8, lba16;
- uint8_t dev;
- uint8_t lba24, lba32, lba40;
- uint8_t reserved1;
-
- uint16_t count;
-
- uint8_t reserved[6];
-} __HBA_PACKED__;
-
-struct sata_data_fis
-{
- struct sata_fis_head head;
-
- uint8_t data[0];
-} __HBA_PACKED__;
-
-struct ahci_device_info
-{
- char serial_num[20];
- char model[40];
- uint32_t max_lba;
- uint32_t sector_size;
- uint8_t wwn[8];
-};
-
-struct ahci_port
-{
- volatile hba_reg_t* regs;
- unsigned int ssts;
- struct ahci_hba_cmdh* cmdlst;
- struct sata_fis_head* fis;
- struct ahci_device_info* device_info;
-};
-
-struct ahci_hba
-{
- volatile hba_reg_t* base;
- unsigned int ports_num;
- unsigned int cmd_slots;
- unsigned int version;
- struct ahci_port* ports[32];
-};
-
#define ATA_IDENTIFY_DEVICE 0xec
#define ATA_IDENTIFY_PAKCET_DEVICE 0xa1
+#define ATA_PACKET 0xa0
/**
* @brief 初始化AHCI与HBA
void
ahci_list_device();
-int
-ahci_identify_device(struct ahci_port* port);
-
#endif /* __LUNAIX_AHCI_H */
--- /dev/null
+#ifndef __LUNAIX_HBA_H
+#define __LUNAIX_HBA_H
+
+#include <stdint.h>
+
+#define HBA_RCAP 0
+#define HBA_RGHC 1
+#define HBA_RIS 2
+#define HBA_RPI 3
+#define HBA_RVER 4
+
+#define HBA_RPBASE (0x40)
+#define HBA_RPSIZE (0x80 >> 2)
+#define HBA_RPxCLB 0
+#define HBA_RPxFB 2
+#define HBA_RPxIS 4
+#define HBA_RPxIE 5
+#define HBA_RPxCMD 6
+#define HBA_RPxTFD 8
+#define HBA_RPxSIG 9
+#define HBA_RPxSSTS 10
+#define HBA_RPxSCTL 11
+#define HBA_RPxSERR 12
+#define HBA_RPxSACT 13
+#define HBA_RPxCI 14
+#define HBA_RPxSNTF 15
+#define HBA_RPxFBS 16
+
+#define HBA_PxCMD_FRE (1 << 4)
+#define HBA_PxCMD_CR (1 << 15)
+#define HBA_PxCMD_FR (1 << 14)
+#define HBA_PxCMD_ST (1)
+#define HBA_PxINTR_DMA (1 << 2)
+#define HBA_PxINTR_D2HR (1)
+
+#define HBA_RGHC_ACHI_ENABLE (1 << 31)
+#define HBA_RGHC_INTR_ENABLE (1 << 1)
+#define HBA_RGHC_RESET 1
+
+#define HBA_RPxSSTS_PWR(x) (((x) >> 8) & 0xf)
+#define HBA_RPxSSTS_IF(x) (((x) >> 4) & 0xf)
+#define HBA_RPxSSTS_PHYSTATE(x) ((x)&0xf)
+
+#define HBA_DEV_SIG_ATAPI 0xeb140101
+#define HBA_DEV_SIG_ATA 0x00000101
+
+#define __HBA_PACKED__ __attribute__((packed))
+
+typedef unsigned int hba_reg_t;
+
+#define HBA_CMDH_FIS_LEN(fis_bytes) (((fis_bytes) / 4) & 0x1f)
+#define HBA_CMDH_ATAPI (1 << 5)
+#define HBA_CMDH_WRITE (1 << 6)
+#define HBA_CMDH_PREFETCH (1 << 7)
+#define HBA_CMDH_R (1 << 8)
+#define HBA_CMDH_CLR_BUSY (1 << 10)
+#define HBA_CMDH_PRDT_LEN(entries) (((entries)&0xffff) << 16)
+
+struct hba_cmdh
+{
+ uint16_t options;
+ uint16_t prdt_len;
+ uint32_t transferred_size;
+ uint32_t cmd_table_base;
+ uint32_t reserved[5];
+} __HBA_PACKED__;
+
+#define HBA_PRDTE_BYTE_CNT(cnt) ((cnt & 0x3FFFFF) | 0x1)
+
+struct hba_prdte
+{
+ uint32_t data_base;
+ uint32_t reserved[2];
+ uint32_t byte_count;
+} __HBA_PACKED__;
+
+struct hba_cmdt
+{
+ uint8_t command_fis[64];
+ uint8_t atapi_cmd[16];
+ uint8_t reserved[0x30];
+ struct hba_prdte entries[3];
+} __HBA_PACKED__;
+
+struct hba_device
+{
+ char serial_num[20];
+ char model[40];
+ uint32_t signature;
+ uint32_t max_lba;
+ uint32_t block_size;
+ uint8_t wwn[8];
+ uint8_t cbd_size;
+};
+
+struct hba_port
+{
+ volatile hba_reg_t* regs;
+ unsigned int ssts;
+ struct hba_cmdh* cmdlst;
+ struct sata_fis_head* fis;
+ struct hba_device* device;
+};
+
+struct ahci_hba
+{
+ volatile hba_reg_t* base;
+ unsigned int ports_num;
+ unsigned int cmd_slots;
+ unsigned int version;
+ struct hba_port* ports[32];
+};
+
+int
+hba_alloc_slot(struct hba_port* port,
+ struct hba_cmdt** cmdt,
+ struct hba_cmdh** cmdh,
+ uint16_t header_options);
+
+#endif /* __LUNAIX_HBA_H */
--- /dev/null
+#ifndef __LUNAIX_SATA_H
+#define __LUNAIX_SATA_H
+
+#include <stdint.h>
+
+#define SATA_REG_FIS_D2H 0x34
+#define SATA_REG_FIS_H2D 0x27
+#define SATA_REG_FIS_COMMAND 0x80
+#define SATA_LBA_COMPONENT(lba, offset) ((((lba_lo) >> (offset)) & 0xff))
+
+struct sata_fis_head
+{
+ uint8_t type;
+ uint8_t options;
+ uint8_t status_cmd;
+ uint8_t feat_err;
+} __HBA_PACKED__;
+
+struct sata_reg_fis
+{
+ struct sata_fis_head head;
+
+ uint8_t lba0, lba8, lba16;
+ uint8_t dev;
+ uint8_t lba24, lba32, lba40;
+ uint8_t reserved1;
+
+ uint16_t count;
+
+ uint8_t reserved[6];
+} __HBA_PACKED__;
+
+struct sata_data_fis
+{
+ struct sata_fis_head head;
+
+ uint8_t data[0];
+} __HBA_PACKED__;
+
+void
+sata_create_fis(struct sata_reg_fis* cmd_fis,
+ uint8_t command,
+ uint32_t lba_lo,
+ uint32_t lba_hi,
+ uint16_t sector_count);
+
+#endif /* __LUNAIX_SATA_H */
--- /dev/null
+#ifndef __LUNAIX_SCSI_H
+#define __LUNAIX_SCSI_H
+
+#include <stdint.h>
+
+#define SCSI_FLIP(val) \
+ ((((val)&0x000000ff) << 24) | (((val)&0x0000ff00) << 8) | \
+ (((val)&0x00ff0000) >> 8) | (((val)&0xff000000) >> 24))
+
+#define SCSI_READ_CAPACITY_16 0x9e
+#define SCSI_READ_CAPACITY_10 0x25
+#define SCSI_READ_BLOCKS_16 0x88
+#define SCSI_READ_BLOCKS_12 0xa8
+#define SCSI_WRITE_BLOCKS_16 0x8a
+#define SCSI_WRITE_BLOCKS_12 0xaa
+
+struct scsi_cdb12
+{
+ uint8_t opcode;
+ uint8_t misc1;
+ uint32_t lba_be;
+ uint32_t length;
+ uint8_t misc2;
+ uint8_t ctrl;
+} __attribute__((packed));
+
+struct scsi_cdb16
+{
+ uint8_t opcode;
+ uint8_t misc1;
+ uint32_t lba_be_hi;
+ uint32_t lba_be_lo;
+ uint32_t length;
+ uint8_t misc2;
+ uint8_t ctrl;
+} __attribute__((packed));
+
+void
+scsi_create_packet12(struct scsi_cdb12* cdb,
+ uint8_t opcode,
+ uint32_t lba,
+ uint32_t alloc_size);
+
+void
+scsi_create_packet16(struct scsi_cdb16* cdb,
+ uint8_t opcode,
+ uint32_t lba_hi,
+ uint32_t lba_lo,
+ uint32_t alloc_size);
+
+#endif /* __LUNAIX_ATAPI_H */
#ifndef __LUNAIX_AHCI_UTILS_H
#define __LUNAIX_AHCI_UTILS_H
-#include <hal/ahci/ahci.h>
+#include <hal/ahci/hba.h>
#include <stdint.h>
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);
void
ahci_parsestr(char* str, uint16_t* reg_start, int size_word);
+void
+scsi_parse_capacity(struct hba_device* device, uint32_t* parameter);
+
#endif /* __LUNAIX_UTILS_H */
git://scm.lunaixsky.com / lunaix-os.git / commitdiff