DragonOS-Community/DragonOS
1
1
Fork 0
mirror of https://github.com/DragonOS-Community/DragonOS.git synced 2025-06-11 00:46:49 +00:00
Code Issues Releases Wiki Activity

完成xhci端口初始化

Browse Source
This commit is contained in:
fslongjin 2022-07-21 21:51:33 +08:00
parent fa1c2bd461
commit 49bbba17ec
3 changed files with 20 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/driver/pci/pci.c
View File

@ -501,11 +501,11 @@ int pci_enable_msi(void *header, uint8_t vector, uint32_t processor, uint8_t edg
{
case 0x00: // general device
if (!(ptr->Status & 0x10))
return E_NOT_SUPPORT_MSI;
return E_NOT_SUPPORT_MSI;
cap_ptr = ((struct pci_device_structure_general_device_t *)ptr)->Capabilities_Pointer;
tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
message_control = (tmp >> 16) & 0xffff;
if (tmp & 0xff != 0x5)

22
kernel/driver/usb/xhci/xhci.c
View File

@ -557,8 +557,9 @@ uint64_t xhci_hc_irq_install(uint64_t irq_num, void *arg)
return -EINVAL;
struct xhci_hc_irq_install_info_t *info = (struct xhci_hc_irq_install_info_t *)arg;
pci_enable_msi(xhci_hc[cid].pci_dev_hdr, irq_num, info->processor, info->edge_trigger, info->assert);
// todo: QEMU是使用msix的，因此要先在pci中实现msix
int retval = pci_enable_msi(xhci_hc[cid].pci_dev_hdr, irq_num, info->processor, info->edge_trigger, info->assert);
kdebug("pci retval = %d", retval);
kdebug("xhci irq %d installed.", irq_num);
return 0;
}
@ -596,7 +597,7 @@ static int xhci_reset_port(const int id, const int port)
int retval = 0;
// 相对于op寄存器基地址的偏移量
uint64_t port_status_offset = XHCI_OPS_PRS + port * 16;
kdebug("to reset %d, offset=%#018lx", port, port_status_offset);
// kdebug("to reset %d, offset=%#018lx", port, port_status_offset);
// 检查端口电源状态
if ((xhci_read_op_reg32(id, port_status_offset + XHCI_PORT_PORTSC) & (1 << 9)) == 0)
{
@ -610,7 +611,7 @@ static int xhci_reset_port(const int id, const int port)
return -EAGAIN;
}
}
kdebug("port:%d, power check ok", port);
// kdebug("port:%d, power check ok", port);
// 确保端口的status被清0
xhci_write_op_reg32(id, port_status_offset + XHCI_PORT_PORTSC, (1 << 9) | XHCI_PORTUSB_CHANGE_BITS);
@ -622,20 +623,23 @@ static int xhci_reset_port(const int id, const int port)
xhci_write_op_reg32(id, port_status_offset + XHCI_PORT_PORTSC, (1 << 9) | (1 << 4));
retval = -ETIMEDOUT;
kdebug("val = %#010lx", xhci_read_op_reg32(id, port_status_offset + XHCI_PORT_PORTSC));
// 等待portsc的port reset change位被置位，说明reset完成
int timeout = 200;
while (timeout)
{
uint32_t val = xhci_read_op_reg32(id, port_status_offset + XHCI_PORT_PORTSC);
// if (timeout % 100)
// kdebug("val = %#010lx", val);
if (val & (1 << 21))
if (XHCI_PORT_IS_USB3(id, port) && (val & (1 << 31)) == 0)
break;
else if (XHCI_PORT_IS_USB2(id, port) && (val & (1 << 4)) == 0)
break;
else if (val & (1 << 21))
break;
--timeout;
usleep(500);
}
kdebug("timeout= %d", timeout);
// kdebug("timeout= %d", timeout);
if (timeout > 0)
{

6
run.sh
View File

@ -101,13 +101,17 @@ bash u*
cd ..
allflags=$(qemu-system-x86_64 -cpu help | awk '/flags/ {y=1; getline}; y {print}' | tr ' ' '\n' | grep -Ev "^$" | sed -r 's|^|+|' | tr '\n' ',' | sed -r "s|,$||")
# 调试usb的trace
qemu_trace_usb=trace:usb_xhci_reset,trace:usb_xhci_run,trace:usb_xhci_stop,trace:usb_xhci_irq_msi,trace:usb_xhci_irq_msix,trace:usb_xhci_port_reset
if [ $flag_can_run -eq 1 ]; then
if [ ${IA32_USE_QEMU} == 0 ]; then
bochs -q -f ${bochsrc} -rc ./tools/bochsinit
else
qemu-system-x86_64 -cdrom ${iso} -m 512M -smp 2,cores=2,threads=1,sockets=1 \
-boot order=d \
-monitor stdio -d cpu_reset,guest_errors,trace:check_exception,exec,cpu,out_asm,in_asm -s -S -cpu "IvyBridge,+apic,+x2apic,+fpu,check,${allflags}" --enable-kvm -rtc clock=host,base=localtime -serial file:serial_opt.txt \
-monitor stdio -d cpu_reset,guest_errors,trace:check_exception,exec,cpu,out_asm,in_asm,${qemu_trace_usb} \
-s -S -cpu "IvyBridge,+apic,+x2apic,+fpu,check,${allflags}" --enable-kvm -rtc clock=host,base=localtime -serial file:serial_opt.txt \
-drive id=disk,file=bin/disk.img,if=none \
-device ahci,id=ahci \
-device ide-hd,drive=disk,bus=ahci.0 \