cortexelf-v1: More 1802 noodling

[fw/altos] / src / cortexelf-v1 / ao_1802.h

diff --git a/src/cortexelf-v1/ao_1802.h b/src/cortexelf-v1/ao_1802.h
index daa49f668989c9107c28c18695485916fd5d4a7a..5ea89fee28e88560cbeadeeaa09529ce8cdc4ca1 100644 (file)
--- a/src/cortexelf-v1/ao_1802.h
+++ b/src/cortexelf-v1/ao_1802.h
@@ -15,20 +15,115 @@
 #ifndef _AO_1802_H_
 #define _AO_1802_H_
 
-/* Signals muxed between 1802 and STM */
-extern uint8_t         MRD, TPB, TPA, MWR;
-
 /* Decoded address driven by TPA/TPB signals */
 extern uint16_t                ADDRESS;
 
 /* Decoded data, driven by TPB signal */
 extern uint8_t         DATA;
 
-extern uint8_t         SC;
+uint8_t
+MRD(void);
+
+void
+MRD_set(uint8_t value);
+
+uint8_t
+MWR(void);
+
+void
+MWR_set(uint8_t value);
+
+uint8_t
+TPA(void);
+
+void
+TPA_set(uint8_t tpa);
+
+uint8_t
+TPB(void);
+
+void
+TPB_set(uint8_t tpb);
+
+uint8_t
+MA(void);
+
+void
+MA_set(uint8_t ma);
+
+/* Tri-state data bus */
+
+uint8_t
+BUS(void);
+
+void
+BUS_set(uint8_t bus);
+
+void
+BUS_stm(void);
+
+void
+BUS_1802(void);
+
+/* Pins controlled by 1802 */
+uint8_t
+SC(void);
+
+uint8_t
+Q(void);
+
+uint8_t
+N(void);
+
+/* Pins controlled by STM */
+uint8_t
+EF(void);
+
+void
+EF_set(uint8_t ef);
+
+uint8_t
+DMA_IN(void);
+
+void
+DMA_IN_set(uint8_t dma_in);
+
+uint8_t
+DMA_OUT(void);
+
+void
+DMA_OUT_set(uint8_t dma_out);
+
+uint8_t
+INT(void);
+
+void
+INT_set(uint8_t dma_out);
+
+uint8_t
+CLEAR(void);
+
+void
+CLEAR_set(uint8_t dma_out);
+
+uint8_t
+WAIT(void);
+
+void
+WAIT_set(uint8_t dma_out);
 
 #define SC_FETCH       0
 #define SC_EXECUTE     1
 #define SC_DMA         2
 #define SC_INTERRUPT   3
 
+void
+MUX_1802(void);
+
+void
+MUX_stm(void);
+
+void
+ao_1802_init(void);
+
 #endif /* _AO_1802_H_ */