diff options
Diffstat (limited to 'Source/Kernel/Devices/Floppy')
-rw-r--r-- | Source/Kernel/Devices/Floppy/FloppyController.class.cpp | 14 | ||||
-rw-r--r-- | Source/Kernel/Devices/Floppy/FloppyController.class.h | 6 | ||||
-rw-r--r-- | Source/Kernel/Devices/Floppy/FloppyDrive.class.cpp | 28 |
3 files changed, 31 insertions, 17 deletions
diff --git a/Source/Kernel/Devices/Floppy/FloppyController.class.cpp b/Source/Kernel/Devices/Floppy/FloppyController.class.cpp index 146ce28..db148d0 100644 --- a/Source/Kernel/Devices/Floppy/FloppyController.class.cpp +++ b/Source/Kernel/Devices/Floppy/FloppyController.class.cpp @@ -96,6 +96,7 @@ FloppyController::FloppyController(u32int base, u8int irq) : m_driveMutex(false) m_drives[0] = NULL; m_drives[1] = NULL; m_first = false; + Dev::requestIRQ(this, m_irq); } void FloppyController::detect() { //TODO : do this better @@ -144,15 +145,14 @@ void FloppyController::setDOR() { dor |= 0x10; if (m_drives[1] != NULL and m_drives[1]->m_motorState != 0) dor |= 0x20; - asm volatile ("cli"); + resetIrq(); outb(m_base + FR_DOR, dor); if (m_first) { //First time we set the DOR, controller initialized - Task::currThread()->waitIRQ(m_irq); + waitIrq(); int st0, cyl; checkInterrupt(&st0, &cyl); m_first = false; } - asm volatile ("sti"); //PANIC("test"); } @@ -203,3 +203,11 @@ bool FloppyController::reset() { } return true; } + +void FloppyController::handleIRQ(registers_t regs, int irq) { + m_irqHappened = true; +} + +void FloppyController::waitIrq() { + while (!m_irqHappened) Task::currThread()->sleep(10); +} diff --git a/Source/Kernel/Devices/Floppy/FloppyController.class.h b/Source/Kernel/Devices/Floppy/FloppyController.class.h index a27d853..f0a7c10 100644 --- a/Source/Kernel/Devices/Floppy/FloppyController.class.h +++ b/Source/Kernel/Devices/Floppy/FloppyController.class.h @@ -60,6 +60,8 @@ class FloppyController : public Device { bool m_first; + bool m_irqHappened; + FloppyDrive* m_drives[2]; void checkInterrupt(int *st0, int *cyl); @@ -69,6 +71,10 @@ class FloppyController : public Device { bool writeCmd(u8int cmd); //Sends command to controller u8int readData(); //Reads a byte from controller bool reset(); + + void handleIRQ(registers_t regs, int irq); + void resetIrq() { m_irqHappened = false; } + void waitIrq(); public: static void detect(); diff --git a/Source/Kernel/Devices/Floppy/FloppyDrive.class.cpp b/Source/Kernel/Devices/Floppy/FloppyDrive.class.cpp index 9335cb7..23d007c 100644 --- a/Source/Kernel/Devices/Floppy/FloppyDrive.class.cpp +++ b/Source/Kernel/Devices/Floppy/FloppyDrive.class.cpp @@ -95,13 +95,12 @@ bool FloppyDrive::calibrate() { if (!setMotorState(true)) return false; for (int i = 0; i < 10; i++) { - asm volatile("cli"); + m_fdc->resetIrq(); m_fdc->writeCmd(FC_RECALIBRATE); m_fdc->writeCmd(m_driveNumber); - Task::currThread()->waitIRQ(m_fdc->m_irq); + m_fdc->waitIrq(); m_fdc->checkInterrupt(&st0, &cyl); - asm volatile("sti"); if (st0 & 0xC0) { continue; @@ -112,6 +111,7 @@ bool FloppyDrive::calibrate() { } } setMotorState(false); + *kvt << getName() << ": calibrate fail\n"; return false; } @@ -146,27 +146,29 @@ bool FloppyDrive::seek(u32int cyli, s32int head) { int st0, cyl = -1; - for (u32int i = 0; i < 5; i++) { - asm volatile ("cli"); + for (u32int i = 0; i < 10; i++) { + m_fdc->resetIrq(); m_fdc->writeCmd(FC_SEEK); m_fdc->writeCmd(head << 2); m_fdc->writeCmd(cyl); - Task::currThread()->waitIRQ(m_fdc->m_irq); + m_fdc->waitIrq(); m_fdc->checkInterrupt(&st0, &cyl); - asm volatile("sti"); if (st0 & 0xC0) { //Error + Task::currThread()->sleep(10); continue; } - if (cyl == 0xFF or cyl == 0x00 or cyl == 0x01 or cyl == (int)cyli) { //0xFF for bochs, 0x00 for qemu :D + if (cyl == 0xFF or cyl == 0x00 or cyl == (int)cyli) { //0xFF for bochs, 0x00 for qemu :D setMotorState(false); m_fdc->setNoActiveDrive(); return true; } + Task::currThread()->sleep(10); } setMotorState(false); m_fdc->setNoActiveDrive(); + *kvt << getName() << ": seek fail\n"; return false; } @@ -199,7 +201,7 @@ bool FloppyDrive::doTrack(u32int cyl, u8int dir) { Task::currThread()->sleep(100); - asm volatile("cli"); + m_fdc->resetIrq(); m_fdc->writeCmd(cmd); m_fdc->writeCmd(m_driveNumber); //Drive number & first head << 2 m_fdc->writeCmd(cyl); //Cylinder @@ -210,7 +212,7 @@ bool FloppyDrive::doTrack(u32int cyl, u8int dir) { m_fdc->writeCmd(0x1B); m_fdc->writeCmd(0xFF); - Task::currThread()->waitIRQ(m_fdc->m_irq); + m_fdc->waitIrq(); u8int st0, st1, st2, rcy, rhe, rse, bps; st0 = m_fdc->readData(); @@ -220,7 +222,6 @@ bool FloppyDrive::doTrack(u32int cyl, u8int dir) { rhe = m_fdc->readData(); rse = m_fdc->readData(); bps = m_fdc->readData(); - asm volatile("sti"); int error = 0; @@ -270,12 +271,11 @@ bool FloppyDrive::doTrack(u32int cyl, u8int dir) { bool FloppyDrive::readOnly() { m_fdc->setActiveDrive(m_driveNumber); - asm volatile("cli"); + m_fdc->resetIrq(); m_fdc->writeCmd(FC_SENSE_DRIVE_STATUS); m_fdc->writeCmd(m_driveNumber); - Task::currThread()->waitIRQ(m_fdc->m_irq); + m_fdc->waitIrq(); u8int st3 = m_fdc->readData(); - asm volatile("sti"); bool ret = (st3 & 0x80 ? true : false); |