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-rw-r--r--arch/m68k/include/asm/mac_baboon.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mac_baboon.h b/arch/m68k/include/asm/mac_baboon.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Definitions for the "Baboon" custom IC on the PowerBook 190.
+ */
+
+#define BABOON_BASE (0x50F1A000) /* same as IDE controller base */
+
+#ifndef __ASSEMBLY__
+
+struct baboon {
+ char pad1[208]; /* generic IDE registers, not used here */
+ short mb_control; /* Control register:
+ * bit 5 : slot 2 power control
+ * bit 6 : slot 1 power control
+ */
+ char pad2[2];
+ short mb_status; /* (0xD4) media bay status register:
+ *
+ * bit 0: ????
+ * bit 1: IDE interrupt active?
+ * bit 2: bay status, 0 = full, 1 = empty
+ * bit 3: ????
+ */
+ char pad3[2]; /* (0xD6) not used */
+ short mb_ifr; /* (0xD8) media bay interrupt flags register:
+ *
+ * bit 0: ????
+ * bit 1: IDE controller interrupt
+ * bit 2: media bay status change interrupt
+ */
+};
+
+extern int baboon_present;
+
+extern void baboon_register_interrupts(void);
+extern void baboon_irq_enable(int);
+extern void baboon_irq_disable(int);
+
+#endif /* __ASSEMBLY **/