diff options
Diffstat (limited to 'sound/pci/emu10k1/io.c')
| -rw-r--r-- | sound/pci/emu10k1/io.c | 61 |
1 files changed, 27 insertions, 34 deletions
diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c index e15092ce9848..c60573f14ea8 100644 --- a/sound/pci/emu10k1/io.c +++ b/sound/pci/emu10k1/io.c @@ -233,56 +233,57 @@ int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu, return err; } -int snd_emu1010_fpga_write(struct snd_emu10k1 * emu, u32 reg, u32 value) +void snd_emu1010_fpga_write(struct snd_emu10k1 *emu, u32 reg, u32 value) { unsigned long flags; - if (reg > 0x3f) - return 1; + if (snd_BUG_ON(reg > 0x3f)) + return; reg += 0x40; /* 0x40 upwards are registers. */ - if (value > 0x3f) /* 0 to 0x3f are values */ - return 1; + if (snd_BUG_ON(value > 0x3f)) /* 0 to 0x3f are values */ + return; spin_lock_irqsave(&emu->emu_lock, flags); - outl(reg, emu->port + A_IOCFG); + outw(reg, emu->port + A_GPIO); udelay(10); - outl(reg | 0x80, emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */ + outw(reg | 0x80, emu->port + A_GPIO); /* High bit clocks the value into the fpga. */ udelay(10); - outl(value, emu->port + A_IOCFG); + outw(value, emu->port + A_GPIO); udelay(10); - outl(value | 0x80 , emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */ + outw(value | 0x80 , emu->port + A_GPIO); /* High bit clocks the value into the fpga. */ spin_unlock_irqrestore(&emu->emu_lock, flags); - - return 0; } -int snd_emu1010_fpga_read(struct snd_emu10k1 * emu, u32 reg, u32 *value) +void snd_emu1010_fpga_read(struct snd_emu10k1 *emu, u32 reg, u32 *value) { + // The higest input pin is used as the designated interrupt trigger, + // so it needs to be masked out. + u32 mask = emu->card_capabilities->ca0108_chip ? 0x1f : 0x7f; unsigned long flags; - if (reg > 0x3f) - return 1; + if (snd_BUG_ON(reg > 0x3f)) + return; reg += 0x40; /* 0x40 upwards are registers. */ spin_lock_irqsave(&emu->emu_lock, flags); - outl(reg, emu->port + A_IOCFG); + outw(reg, emu->port + A_GPIO); udelay(10); - outl(reg | 0x80, emu->port + A_IOCFG); /* High bit clocks the value into the fpga. */ + outw(reg | 0x80, emu->port + A_GPIO); /* High bit clocks the value into the fpga. */ udelay(10); - *value = ((inl(emu->port + A_IOCFG) >> 8) & 0x7f); + *value = ((inw(emu->port + A_GPIO) >> 8) & mask); spin_unlock_irqrestore(&emu->emu_lock, flags); - - 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, u32 dst, u32 src) +void snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 *emu, u32 dst, u32 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; + if (snd_BUG_ON(dst & ~0x71f)) + return; + if (snd_BUG_ON(src & ~0x71f)) + return; + snd_emu1010_fpga_write(emu, 0x00, dst >> 8); + snd_emu1010_fpga_write(emu, 0x01, dst & 0x1f); + snd_emu1010_fpga_write(emu, 0x02, src >> 8); + snd_emu1010_fpga_write(emu, 0x03, src & 0x1f); } void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb) @@ -313,7 +314,6 @@ void snd_emu10k1_voice_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenu unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(CLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); @@ -333,7 +333,6 @@ void snd_emu10k1_voice_intr_disable(struct snd_emu10k1 *emu, unsigned int voicen unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(CLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); @@ -352,7 +351,6 @@ void snd_emu10k1_voice_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum) unsigned long flags; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(CLIPH << 16, emu->port + PTR); voicenum = 1 << (voicenum - 32); @@ -370,7 +368,6 @@ void snd_emu10k1_voice_half_loop_intr_enable(struct snd_emu10k1 *emu, unsigned i unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(HLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); @@ -390,7 +387,6 @@ void snd_emu10k1_voice_half_loop_intr_disable(struct snd_emu10k1 *emu, unsigned unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(HLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); @@ -409,7 +405,6 @@ void snd_emu10k1_voice_half_loop_intr_ack(struct snd_emu10k1 *emu, unsigned int unsigned long flags; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(HLIPH << 16, emu->port + PTR); voicenum = 1 << (voicenum - 32); @@ -427,7 +422,6 @@ void snd_emu10k1_voice_set_loop_stop(struct snd_emu10k1 *emu, unsigned int voice unsigned int sol; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(SOLEH << 16, emu->port + PTR); sol = inl(emu->port + DATA); @@ -447,7 +441,6 @@ void snd_emu10k1_voice_clear_loop_stop(struct snd_emu10k1 *emu, unsigned int voi unsigned int sol; spin_lock_irqsave(&emu->emu_lock, flags); - /* voice interrupt */ if (voicenum >= 32) { outl(SOLEH << 16, emu->port + PTR); sol = inl(emu->port + DATA); |