diff options
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/emu10k1.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index 00c2d8cd5a8d..89dbd2e93410 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -251,11 +251,16 @@ #define MUSTAT_IRDYN 0x80 /* 0 = MIDI data or command ACK */ #define MUSTAT_ORDYN 0x40 /* 0 = MUDATA can accept a command or data */ -#define A_IOCFG 0x18 /* GPIO on Audigy card (16bits) */ +#define A_GPIO 0x18 /* GPIO on Audigy card (16bits) */ #define A_GPINPUT_MASK 0xff00 #define A_GPOUTPUT_MASK 0x00ff +// The GPIO port is used for I/O config on Sound Blasters; +// card-specific info can be found in the emu_chip_details table. +// On E-MU cards the port is used as the interface to the FPGA. + // Audigy output/GPIO stuff taken from the kX drivers +#define A_IOCFG A_GPIO #define A_IOCFG_GPOUT0 0x0044 /* analog/digital */ #define A_IOCFG_DISABLE_ANALOG 0x0040 /* = 'enable' for Audigy2 (chiprev=4) */ #define A_IOCFG_ENABLE_DIGITAL 0x0004 |