ppcskel - a Free Software replacement for the Nintendo/BroadOn IOS.
IRQ support
-Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
-Copyright (C) 2008, 2009 Sven Peter <svenpeter@gmail.com>
-Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
+Copyright (C) 2009 Bernhard Urban <lewurm@gmx.net>
+Copyright (C) 2009 Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
#include "hollywood.h"
#include "ipc.h"
#include "bootmii_ppc.h"
-//debug only
-#include "printf.h"
+#include "usb/host/host.h"
+#include "mini_ipc.h"
+
+void show_frame_no(void);
void irq_initialize(void)
{
- // enable OHCI0 interrupt on hollywood-pic
+ // clear flipper-pic (processor interface)
+ write32(BW_PI_IRQMASK, 0);
+ write32(BW_PI_IRQFLAG, 0xffffffff);
+
+ // clear hollywood-pic
write32(HW_PPCIRQMASK, 0);
write32(HW_PPCIRQFLAG, 0xffffffff);
- // enable RESET and PIC (#14) interrupts on processor interface
- write32(BW_PI_IRQFLAG, 0xffffffff);
-#define BW_PI_IRQ_RESET 1
-#define BW_PI_IRQ_HW 14
- write32(BW_PI_IRQMASK, (1<<BW_PI_IRQ_RESET) | (1<<BW_PI_IRQ_HW));
-
- //??? -- needed?!
- write32(HW_PPCIRQMASK+0x04, 0);
- write32(HW_PPCIRQMASK+0x20, 0);
+ /* ??? -- needed?!
+ * in mini they do
+ *
+ * write32(HW_ARMIRQMASK+0x04, 0);
+ * write32(HW_ARMIRQMASK+0x20, 0);
+ *
+ *
+ * may it's here following; on the other
+ * hand it's already done by mini...
+ *
+ * write32(HW_PPCIRQMASK+0x04+0x08, 0);
+ * write32(HW_PPCIRQMASK+0x20+0x08, 0);
+ */
_CPU_ISR_Enable()
}
{
write32(HW_PPCIRQMASK, 0);
write32(HW_PPCIRQFLAG, 0xffffffff);
- irq_kill();
+ (void) irq_kill();
}
void irq_handler(void)
{
- u32 enabled = read32(HW_PPCIRQMASK);
- u32 flags = read32(HW_PPCIRQFLAG);
-
- printf("In IRQ handler: 0x%08x 0x%08x 0x%08x\n", enabled, flags, flags & enabled);
+ u32 enabled = read32(BW_PI_IRQMASK);
+ u32 flags = read32(BW_PI_IRQFLAG);
flags = flags & enabled;
- if(flags & IRQF_TIMER) {
- // done by mini already?
- /*
- if (_alarm_frequency) {
- // currently we use the alarm timer only for lame usbgecko polling
- gecko_timer();
- write32(HW_ALARM, read32(HW_TIMER) + _alarm_frequency);
- }
- */
- write32(HW_PPCIRQFLAG, IRQF_TIMER);
- }
- if(flags & IRQF_NAND) {
-// printf("IRQ: NAND\n");
- // hmmm... should be done by mini?
- write32(NAND_CMD, 0x7fffffff); // shut it up
- write32(HW_PPCIRQFLAG, IRQF_NAND);
- //nand_irq();
- }
- if(flags & IRQF_GPIO1B) {
-// printf("IRQ: GPIO1B\n");
- // hmmm... should be done by mini?
- write32(HW_GPIO1BINTFLAG, 0xFFFFFF); // shut it up
- write32(HW_PPCIRQFLAG, IRQF_GPIO1B);
- }
- if(flags & IRQF_GPIO1) {
-// printf("IRQ: GPIO1\n");
- // hmmm... should be done by mini?
- write32(HW_GPIO1INTFLAG, 0xFFFFFF); // shut it up
- write32(HW_PPCIRQFLAG, IRQF_GPIO1);
- }
- if(flags & IRQF_RESET) {
-// printf("IRQ: RESET\n");
- write32(HW_PPCIRQFLAG, IRQF_RESET);
+ if (flags & (1<<BW_PI_IRQ_RESET)) {
+ write32(BW_PI_IRQFLAG, 1<<BW_PI_IRQ_RESET);
+ boot2_run(1,2); //sysmenu
}
- if(flags & IRQF_IPC) {
- //printf("IRQ: IPC\n");
- //not necessary here?
- //ipc_irq();
- write32(HW_PPCIRQFLAG, IRQF_IPC);
- }
- if(flags & IRQF_AES) {
-// printf("IRQ: AES\n");
- write32(HW_PPCIRQFLAG, IRQF_AES);
- }
- if (flags & IRQF_SDHC) {
-// printf("IRQ: SDHC\n");
- write32(HW_PPCIRQFLAG, IRQF_SDHC);
- //sdhc_irq();
- }
- if (flags & IRQF_OHCI0) {
- printf("IRQ: OHCI0\n");
- write32(HW_PPCIRQFLAG, IRQF_OHCI0);
- //TODO: ohci0_irq();
- }
- if (flags & IRQF_OHCI1) {
- printf("IRQ: OHCI1\n");
- write32(HW_PPCIRQFLAG, IRQF_OHCI1);
- //TODO: ohci1_irq();
- }
-
- flags &= ~IRQF_ALL;
- if(flags) {
- printf("IRQ: unknown 0x%08x\n", flags);
- write32(HW_PPCIRQFLAG, flags);
+
+ if (flags & (1<<BW_PI_IRQ_HW)) { //HW-PIC IRQ
+ u32 hw_enabled = read32(HW_PPCIRQMASK);
+ u32 hw_flags = read32(HW_PPCIRQFLAG);
+
+ //printf("In IRQ handler: 0x%08x 0x%08x 0x%08x\n", hw_enabled, hw_flags, hw_flags & hw_enabled);
+
+ hw_flags = hw_flags & hw_enabled;
+
+ if(hw_flags & IRQF_TIMER) {
+ write32(HW_PPCIRQFLAG, IRQF_TIMER);
+ }
+ if(hw_flags & IRQF_NAND) {
+ // printf("IRQ: NAND\n");
+ // hmmm... should be done by mini?
+ write32(NAND_CMD, 0x7fffffff); // shut it up
+ write32(HW_PPCIRQFLAG, IRQF_NAND);
+ //nand_irq();
+ }
+ if(hw_flags & IRQF_GPIO1B) {
+ // printf("IRQ: GPIO1B\n");
+ // hmmm... should be done by mini?
+ write32(HW_GPIO1BINTFLAG, 0xFFFFFF); // shut it up
+ write32(HW_PPCIRQFLAG, IRQF_GPIO1B);
+ }
+ if(hw_flags & IRQF_GPIO1) {
+ // printf("IRQ: GPIO1\n");
+ // hmmm... should be done by mini?
+ write32(HW_GPIO1INTFLAG, 0xFFFFFF); // shut it up
+ write32(HW_PPCIRQFLAG, IRQF_GPIO1);
+ }
+ if(hw_flags & IRQF_RESET) {
+ // printf("IRQ: RESET\n");
+ write32(HW_PPCIRQFLAG, IRQF_RESET);
+ }
+ if(hw_flags & IRQF_IPC) {
+ //printf("IRQ: IPC\n");
+ //not necessary here?
+ //ipc_irq();
+ write32(HW_PPCIRQFLAG, IRQF_IPC);
+ }
+ if(hw_flags & IRQF_AES) {
+ // printf("IRQ: AES\n");
+ write32(HW_PPCIRQFLAG, IRQF_AES);
+ }
+ if (hw_flags & IRQF_SDHC) {
+ // printf("IRQ: SDHC\n");
+ write32(HW_PPCIRQFLAG, IRQF_SDHC);
+ //sdhc_irq();
+ }
+ if (hw_flags & IRQF_OHCI0) {
+ hcdi_irq(OHCI0_REG_BASE);
+ write32(HW_PPCIRQFLAG, IRQF_OHCI0);
+ }
+ if (hw_flags & IRQF_OHCI1) {
+ hcdi_irq(OHCI1_REG_BASE);
+ write32(HW_PPCIRQFLAG, IRQF_OHCI1);
+ }
+
+ hw_flags &= ~IRQF_ALL;
+ if(hw_flags) {
+ printf("IRQ: unknown 0x%08x\n", hw_flags);
+ write32(HW_PPCIRQFLAG, hw_flags);
+ }
+
+ // not necessary here, but "cleaner"?
+ write32(BW_PI_IRQFLAG, 1<<BW_PI_IRQ_HW);
}
}
-void irq_enable(u32 irq)
+void irq_bw_enable(u32 irq)
+{
+ set32(BW_PI_IRQMASK, 1<<irq);
+}
+
+void irq_bw_disable(u32 irq) {
+ clear32(BW_PI_IRQMASK, 1<<irq);
+}
+
+void irq_hw_enable(u32 irq)
{
set32(HW_PPCIRQMASK, 1<<irq);
}
-void irq_disable(u32 irq)
+void irq_hw_disable(u32 irq)
{
clear32(HW_PPCIRQMASK, 1<<irq);
}
-inline u32 irq_kill() {
+u32 irq_kill() {
u32 cookie;
_CPU_ISR_Disable(cookie);
return cookie;
}
-inline void irq_restore(u32 cookie) {
+void irq_restore(u32 cookie) {
_CPU_ISR_Restore(cookie);
+ _CPU_ISR_Enable(); //wtf :/
}
projects / ppcskel.git / blobdiff