diff options
| author | briggs <briggs@cvs.openbsd.org> | 1996-11-02 06:47:23 +0000 |
|---|---|---|
| committer | briggs <briggs@cvs.openbsd.org> | 1996-11-02 06:47:23 +0000 |
| commit | b7ae6861f731e1c51e096294ae9cb1eda7ba7766 (patch) | |
| tree | 976d84b8597e6ab18b7a624b6a9cc8880daef01e /sys/arch/mac68k/dev/espvar.h | |
| parent | 1fd696a682b5adc6123b8ee6b65df7d6fc4307bc (diff) | |
Improve reliability on my Q700, at least. Was getting the occasional
glitch--an extra byte on occasion.
Diffstat (limited to 'sys/arch/mac68k/dev/espvar.h')
| -rw-r--r-- | sys/arch/mac68k/dev/espvar.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/arch/mac68k/dev/espvar.h b/sys/arch/mac68k/dev/espvar.h index 8624953a535..ba7ab77ad4d 100644 --- a/sys/arch/mac68k/dev/espvar.h +++ b/sys/arch/mac68k/dev/espvar.h @@ -354,7 +354,8 @@ ESP_READ_REG(sc, reg) /* DMA macros for ESP */ #define DMA_ISINTR(sc) (ESP_READ_REG((sc)->sc_esp, ESP_STAT) & 0x80) -#define DMA_RESET(sc) do { (sc)->sc_active = 0; } while(0) +#define DMA_RESET(sc) do { (sc)->sc_active = 0; \ + (sc)->sc_tc = 0;} while(0) #define DMA_INTR(sc) dma_intr(sc) #define DMA_SETUP(sc, paddr, plen, datain, pdmasize) \ do { \ @@ -362,6 +363,7 @@ ESP_READ_REG(sc, reg) (sc)->sc_pdmalen = plen; \ (sc)->sc_datain = datain; \ (sc)->sc_dmasize = *pdmasize; \ + (sc)->sc_tc = 0; \ } while (0) #define DMA_GO(sc) \ @@ -370,6 +372,7 @@ ESP_READ_REG(sc, reg) ESP_WRITE_REG((sc)->sc_esp, \ ESP_FIFO, **(sc)->sc_dmaaddr); \ (*(sc)->sc_pdmalen)--; \ + (*(sc)->sc_dmaaddr)++; \ } \ (sc)->sc_active = 1; \ } while (0) |