diff options
| author | Christian Cunningham <cc@localhost> | 2021-12-23 21:42:32 -0800 |
|---|---|---|
| committer | Christian Cunningham <cc@localhost> | 2021-12-23 21:42:32 -0800 |
| commit | 9bc94963aefcb5028c3529ff59c974e48d814690 (patch) | |
| tree | eb90b58da616bce55176b4f8f72a238cce19cd0d /src/sys/core.c | |
| parent | a905c499ceddc47a5fcd46f863e453919c196722 (diff) | |
Intro USB
Diffstat (limited to 'src/sys/core.c')
| -rw-r--r-- | src/sys/core.c | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/src/sys/core.c b/src/sys/core.c index ed88570..3f2d117 100644 --- a/src/sys/core.c +++ b/src/sys/core.c @@ -1,5 +1,6 @@ #include "../cpu/irq.h" #include "../drivers/uart.h" +#include "../drivers/usb.h" #include "../graphics/lfb.h" #include "../graphics/drawer.h" #include "../lib/mem.h" @@ -18,14 +19,44 @@ char* os_info_v = VERSION; // Initialize IRQs void sysinit() { + // Route GPU interrupts to Core 0 + store32(0x00, GPU_INTERRUPTS_ROUTING); + // Mask Overrun of UART0 store32(1<<4, UART0_IMSC); // Enable UART GPU IRQ store32(1<<25, IRQ_ENABLE2); - // Route GPU interrupts to Core 0 - store32(0x00, GPU_INTERRUPTS_ROUTING); + // Enable USB Interrupt + store32(1<<9, IRQ_ENABLE1); + // USB Host power on + // HPRT.PrtPwr = 1'b1 -> HPRT.PrtRst = 1'b1 -> wait 60msec -> HPRT.PrtRst = 1'b0 + *USB_HOST_HPRT |= 1 << 12; + *USB_HOST_HPRT |= 1 << 8; + delay(0x100000); + *USB_HOST_HPRT &= ~(1 << 8); + + // enable irq + // GAHBCFG.GlblIntrMsk = 1'b1 + // GINTMSK.ConIDStsChngMsk = 1'b1, GINTMSK.PrtIntMsk = 1'b1, GINTMSK.SofMsk = 1'b1 + *USB_CORE_GAHBCFG |= 1; + *USB_CORE_GINTMSK = 1 << 28 | 1 << 24 | 0 << 3; + + // port enable and retry detect + // HPRT.PrtPwr = 1'b1, HPRT.PrtEnChng = 1'b1, HPRT.PrtConnDet = 1'b1 + *USB_HOST_HPRT = 1 << 12 | 1 << 3 | 1 << 1; + + // enable channel irq + // HAINTMASK.HAINTMsk = 16'h3 + // HCINTMSK0.XferComplMsk = 1'b1 + *USB_HOST_HAINTMSK |= 0x3; + *USB_HOST_HCINTMSK0 |= 1; + *USB_HOST_HCINTMSK1 |= 1; + + // HCCAR1.EPDir = 1'b0 (OUT) / 1'b01(IN), HCCAR1.MPS = 11'h40 + *USB_HOST_HCCHAR0 |= 0x40; // OUT + *USB_HOST_HCCHAR1 |= 1 << 15 | 0x40; // IN // Enable Timer // As an IRQ @@ -128,4 +159,10 @@ void postinit() { } write_string(&g_Drawer, "\n> "); + + send_packet(); + for (int i = 0; i < 18; i++) { + uart_hex(usb_buffer1[i]); + uart_char('\n'); + } } |