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Diffstat (limited to 'sound/pci/emu10k1/io.c')
-rw-r--r--sound/pci/emu10k1/io.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c
index 029e7856c43b..27ab7d1788a0 100644
--- a/sound/pci/emu10k1/io.c
+++ b/sound/pci/emu10k1/io.c
@@ -167,6 +167,51 @@ int snd_emu10k1_spi_write(struct snd_emu10k1 * emu,
return 0;
}
+int snd_emu1010_fpga_write(struct snd_emu10k1 * emu, int reg, int value)
+{
+ if (reg < 0 || reg > 0x3f)
+ return 1;
+ reg += 0x40; /* 0x40 upwards are registers. */
+ if (value < 0 || value > 0x3f) /* 0 to 0x3f are values */
+ return 1;
+ outl(reg, emu->port + A_IOCFG);
+ udelay(10);
+ outl(reg | 0x80, emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */
+ udelay(10);
+ outl(value, emu->port + A_IOCFG);
+ udelay(10);
+ outl(value | 0x80 , emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */
+
+ return 0;
+}
+
+int snd_emu1010_fpga_read(struct snd_emu10k1 * emu, int reg, int *value)
+{
+ if (reg < 0 || reg > 0x3f)
+ return 1;
+ reg += 0x40; /* 0x40 upwards are registers. */
+ outl(reg, emu->port + A_IOCFG);
+ udelay(10);
+ outl(reg | 0x80, emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */
+ udelay(10);
+ *value = ((inl(emu->port + A_IOCFG) >> 8) & 0x7f);
+
+ return 0;
+}
+
+/* Each Destination has one and only one Source,
+ * but one Source can feed any number of Destinations simultaneously.
+ */
+int snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 * emu, int dst, int src)
+{
+ snd_emu1010_fpga_write(emu, 0x00, ((dst >> 8) & 0x3f) );
+ snd_emu1010_fpga_write(emu, 0x01, (dst & 0x3f) );
+ snd_emu1010_fpga_write(emu, 0x02, ((src >> 8) & 0x3f) );
+ snd_emu1010_fpga_write(emu, 0x03, (src & 0x3f) );
+
+ return 0;
+}
+
void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
{
unsigned long flags;