1 files changed, 0 insertions, 131 deletions
diff --git a/src/ao_dma.c b/src/ao_dma.c
deleted file mode 100644
index 6052964a..00000000
--- a/src/ao_dma.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * Copyright © 2009 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include "ao.h"
-
-#define NUM_DMA	5
-
-/*
- * The config address for DMA0 is programmed
- * separately from that of DMA1-4, but for simplicity,
- * we make them all contiguous.
- */
-
-static __xdata struct cc_dma_channel ao_dma_config[NUM_DMA];
-static __xdata uint8_t * __xdata ao_dma_done[NUM_DMA];
-static __data uint8_t ao_next_dma;
-
-uint8_t
-ao_dma_alloc(__xdata uint8_t *done)
-{
-	uint8_t id;
-
-	if (ao_next_dma == NUM_DMA)
-		ao_panic(AO_PANIC_DMA);
-	id = ao_next_dma++;
-	ao_dma_done[id] = done;
-
-	/* When the first dma object is allocated, set up the DMA
-	 * controller
-	 */
-	if (id == 0) {
-		DMAIRQ = 0;
-		DMAIF = 0;
-		IEN1 |= IEN1_DMAIE;
-	}
-
-	return id;
-}
-
-void
-ao_dma_set_transfer(uint8_t id,
-		    void __xdata *srcaddr,
-		    void __xdata *dstaddr,
-		    uint16_t count,
-		    uint8_t cfg0,
-		    uint8_t cfg1)
-{
-	if (DMAARM & (1 << id))
-		ao_panic(AO_PANIC_DMA);
-	ao_dma_config[id].src_high = ((uint16_t) srcaddr) >> 8;
-	ao_dma_config[id].src_low = ((uint16_t) srcaddr);
-	ao_dma_config[id].dst_high = ((uint16_t) dstaddr) >> 8;
-	ao_dma_config[id].dst_low = ((uint16_t) dstaddr);
-	ao_dma_config[id].len_high = count >> 8;
-	ao_dma_config[id].len_low = count;
-	ao_dma_config[id].cfg0 = cfg0;
-	ao_dma_config[id].cfg1 = cfg1 | DMA_CFG1_IRQMASK;
-	if (id == 0) {
-		DMA0CFGH = ((uint16_t) (&ao_dma_config[0])) >> 8;
-		DMA0CFGL = ((uint16_t) (&ao_dma_config[0]));
-	} else {
-		DMA1CFGH = ((uint16_t) (&ao_dma_config[1])) >> 8;
-		DMA1CFGL = ((uint16_t) (&ao_dma_config[1]));
-	}
-}
-
-#define nop()	_asm nop _endasm;
-
-void
-ao_dma_start(uint8_t id)
-{
-	uint8_t	mask = (1 << id);
-	DMAIRQ &= ~mask;
-	DMAARM = 0x80 | mask;
-	nop(); nop(); nop(); nop();
-	nop(); nop(); nop(); nop();
-	*(ao_dma_done[id]) = 0;
-	DMAARM = mask;
-	nop(); nop(); nop(); nop();
-	nop(); nop(); nop(); nop();
-	nop();
-}
-
-void
-ao_dma_trigger(uint8_t id)
-{
-	DMAREQ |= (1 << id);
-}
-
-void
-ao_dma_abort(uint8_t id)
-{
-	uint8_t	mask = (1 << id);
-	DMAARM = 0x80 | mask;
-	DMAIRQ &= ~mask;
-}
-
-void
-ao_dma_isr(void) __interrupt 8
-{
-	uint8_t id, mask;
-
-	/* Find the first DMA channel which is done */
-	mask = 1;
-	for (id = 0; id < ao_next_dma; id++) {
-		if (DMAIRQ & mask) {
-			/* Clear CPU interrupt flag */
-			DMAIF = 0;
-			/* Clear the completed ID */
-			DMAIRQ = ~mask;
-			*(ao_dma_done[id]) = 1;
-			ao_wakeup(ao_dma_done[id]);
-			break;
-		}
-		mask <<= 1;
-	}
-}