X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstm%2Fao_dma_stm.c;h=6d77966076a88aefeac0f8a281fa81b5ebe0b662;hb=1934468e96ea9d179abf6e3e728b6b14ce793f46;hp=298a15b5ce58bdd4d67fbe69293c96d22e4dcbc3;hpb=0dec7d0885970a7d73468dd77220bae78e161b40;p=fw%2Faltos

diff --git a/src/stm/ao_dma_stm.c b/src/stm/ao_dma_stm.c
index 298a15b5..6d779660 100644
--- a/src/stm/ao_dma_stm.c
+++ b/src/stm/ao_dma_stm.c
@@ -3,7 +3,8 @@
  *
  * 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.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -64,7 +65,7 @@ ao_dma_set_transfer(uint8_t 		index,
 	if (ao_dma_allocated[index]) {
 		if (ao_dma_mutex[index])
 			ao_panic(AO_PANIC_DMA);
-		ao_dma_mutex[index] = 1;
+		ao_dma_mutex[index] = 0xff;
 	} else
 		ao_mutex_get(&ao_dma_mutex[index]);
 	ao_arch_critical(
@@ -113,6 +114,40 @@ ao_dma_alloc(uint8_t index)
 	ao_dma_allocated[index] = 1;
 }
 
+#if DEBUG
+void
+ao_dma_dump_cmd(void)
+{
+	int i;
+
+	ao_arch_critical(
+		if (ao_dma_active++ == 0)
+			stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_DMA1EN);
+		);
+	printf ("isr %08x ifcr%08x\n", stm_dma.isr, stm_dma.ifcr);
+	for (i = 0; i < NUM_DMA; i++)
+		printf("%d: done %d allocated %d mutex %2d ccr %04x cndtr %04x cpar %08x cmar %08x isr %08x\n",
+		       i,
+		       ao_dma_done[i],
+		       ao_dma_allocated[i],
+		       ao_dma_mutex[i],
+		       stm_dma.channel[i].ccr,
+		       stm_dma.channel[i].cndtr,
+		       stm_dma.channel[i].cpar,
+		       stm_dma.channel[i].cmar,
+		       ao_dma_config[i].isr);
+	ao_arch_critical(
+		if (--ao_dma_active == 0)
+			stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_DMA1EN);
+		);
+}
+
+static const struct ao_cmds ao_dma_cmds[] = {
+	{ ao_dma_dump_cmd, 	"D\0Dump DMA status" },
+	{ 0, NULL }
+};
+#endif
+
 void
 ao_dma_init(void)
 {
@@ -124,5 +159,7 @@ ao_dma_init(void)
 		ao_dma_allocated[index] = 0;
 		ao_dma_mutex[index] = 0;
 	}
-	
+#if DEBUG
+	ao_cmd_register(&ao_dma_cmds[0]);
+#endif
 }