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CMI8x38: Channel reset bits should be fully writable, fixes #4576

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This commit is contained in:
RichardG867
2024-07-05 14:45:13 -03:00
parent 357701dbb5
commit 46aa5befc0
1 changed files with 1 additions and 5 deletions
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6
src/sound/snd_cmi8x38.c
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@@ -706,7 +706,7 @@ cmi8x38_write(uint16_t addr, uint8_t val, void *priv)
case 0x02: case 0x02:
/* Reset or start DMA channels if requested. */ /* Reset or start DMA channels if requested. */
dev->io_regs[addr] = val & 0x03; dev->io_regs[addr] = val & 0x0f;
for (int i = 0; i < (sizeof(dev->dma) / sizeof(dev->dma[0])); i++) { for (int i = 0; i < (sizeof(dev->dma) / sizeof(dev->dma[0])); i++) {
if (val & (0x04 << i)) { if (val & (0x04 << i)) {
/* Reset DMA channel. */ /* Reset DMA channel. */
@@ -724,15 +724,11 @@ cmi8x38_write(uint16_t addr, uint8_t val, void *priv)
} }
} }
/* Clear reset bits. */
val &= 0x03;
/* Start playback along with DMA channels. */ /* Start playback along with DMA channels. */
if (val & 0x03) if (val & 0x03)
cmi8x38_start_playback(dev); cmi8x38_start_playback(dev);
/* Update interrupts. */ /* Update interrupts. */
dev->io_regs[addr] = val;
cmi8x38_update_irqs(dev); cmi8x38_update_irqs(dev);
break; break;