diff options
Diffstat (limited to 'sound/pci/emu10k1/io.c')
| -rw-r--r-- | sound/pci/emu10k1/io.c | 404 |
1 files changed, 404 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c new file mode 100644 index 000000000000..b9d3ae0dcab7 --- /dev/null +++ b/sound/pci/emu10k1/io.c @@ -0,0 +1,404 @@ +/* + * Copyright (c) by Jaroslav Kysela <perex@suse.cz> + * Creative Labs, Inc. + * Routines for control of EMU10K1 chips + * + * BUGS: + * -- + * + * TODO: + * -- + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <sound/driver.h> +#include <linux/time.h> +#include <sound/core.h> +#include <sound/emu10k1.h> + +unsigned int snd_emu10k1_ptr_read(emu10k1_t * emu, unsigned int reg, unsigned int chn) +{ + unsigned long flags; + unsigned int regptr, val; + unsigned int mask; + + mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK; + regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK); + + if (reg & 0xff000000) { + unsigned char size, offset; + + size = (reg >> 24) & 0x3f; + offset = (reg >> 16) & 0x1f; + mask = ((1 << size) - 1) << offset; + + spin_lock_irqsave(&emu->emu_lock, flags); + outl(regptr, emu->port + PTR); + val = inl(emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); + + return (val & mask) >> offset; + } else { + spin_lock_irqsave(&emu->emu_lock, flags); + outl(regptr, emu->port + PTR); + val = inl(emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); + return val; + } +} + +void snd_emu10k1_ptr_write(emu10k1_t *emu, unsigned int reg, unsigned int chn, unsigned int data) +{ + unsigned int regptr; + unsigned long flags; + unsigned int mask; + + mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK; + regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK); + + if (reg & 0xff000000) { + unsigned char size, offset; + + size = (reg >> 24) & 0x3f; + offset = (reg >> 16) & 0x1f; + mask = ((1 << size) - 1) << offset; + data = (data << offset) & mask; + + spin_lock_irqsave(&emu->emu_lock, flags); + outl(regptr, emu->port + PTR); + data |= inl(emu->port + DATA) & ~mask; + outl(data, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); + } else { + spin_lock_irqsave(&emu->emu_lock, flags); + outl(regptr, emu->port + PTR); + outl(data, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); + } +} + +unsigned int snd_emu10k1_ptr20_read(emu10k1_t * emu, + unsigned int reg, + unsigned int chn) +{ + unsigned long flags; + unsigned int regptr, val; + + regptr = (reg << 16) | chn; + + spin_lock_irqsave(&emu->emu_lock, flags); + outl(regptr, emu->port + 0x20 + PTR); + val = inl(emu->port + 0x20 + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); + return val; +} + +void snd_emu10k1_ptr20_write(emu10k1_t *emu, + unsigned int reg, + unsigned int chn, + unsigned int data) +{ + unsigned int regptr; + unsigned long flags; + + regptr = (reg << 16) | chn; + + spin_lock_irqsave(&emu->emu_lock, flags); + outl(regptr, emu->port + 0x20 + PTR); + outl(data, emu->port + 0x20 + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_intr_enable(emu10k1_t *emu, unsigned int intrenb) +{ + unsigned long flags; + unsigned int enable; + + spin_lock_irqsave(&emu->emu_lock, flags); + enable = inl(emu->port + INTE) | intrenb; + outl(enable, emu->port + INTE); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_intr_disable(emu10k1_t *emu, unsigned int intrenb) +{ + unsigned long flags; + unsigned int enable; + + spin_lock_irqsave(&emu->emu_lock, flags); + enable = inl(emu->port + INTE) & ~intrenb; + outl(enable, emu->port + INTE); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_intr_enable(emu10k1_t *emu, unsigned int voicenum) +{ + unsigned long flags; + 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); + val |= 1 << (voicenum - 32); + } else { + outl(CLIEL << 16, emu->port + PTR); + val = inl(emu->port + DATA); + val |= 1 << voicenum; + } + outl(val, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_intr_disable(emu10k1_t *emu, unsigned int voicenum) +{ + unsigned long flags; + 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); + val &= ~(1 << (voicenum - 32)); + } else { + outl(CLIEL << 16, emu->port + PTR); + val = inl(emu->port + DATA); + val &= ~(1 << voicenum); + } + outl(val, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_intr_ack(emu10k1_t *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); + } else { + outl(CLIPL << 16, emu->port + PTR); + voicenum = 1 << voicenum; + } + outl(voicenum, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_half_loop_intr_enable(emu10k1_t *emu, unsigned int voicenum) +{ + unsigned long flags; + 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); + val |= 1 << (voicenum - 32); + } else { + outl(HLIEL << 16, emu->port + PTR); + val = inl(emu->port + DATA); + val |= 1 << voicenum; + } + outl(val, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_half_loop_intr_disable(emu10k1_t *emu, unsigned int voicenum) +{ + unsigned long flags; + 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); + val &= ~(1 << (voicenum - 32)); + } else { + outl(HLIEL << 16, emu->port + PTR); + val = inl(emu->port + DATA); + val &= ~(1 << voicenum); + } + outl(val, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_half_loop_intr_ack(emu10k1_t *emu, unsigned int voicenum) +{ + 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); + } else { + outl(HLIPL << 16, emu->port + PTR); + voicenum = 1 << voicenum; + } + outl(voicenum, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_set_loop_stop(emu10k1_t *emu, unsigned int voicenum) +{ + unsigned long flags; + 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); + sol |= 1 << (voicenum - 32); + } else { + outl(SOLEL << 16, emu->port + PTR); + sol = inl(emu->port + DATA); + sol |= 1 << voicenum; + } + outl(sol, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_voice_clear_loop_stop(emu10k1_t *emu, unsigned int voicenum) +{ + unsigned long flags; + 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); + sol &= ~(1 << (voicenum - 32)); + } else { + outl(SOLEL << 16, emu->port + PTR); + sol = inl(emu->port + DATA); + sol &= ~(1 << voicenum); + } + outl(sol, emu->port + DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +void snd_emu10k1_wait(emu10k1_t *emu, unsigned int wait) +{ + volatile unsigned count; + unsigned int newtime = 0, curtime; + + curtime = inl(emu->port + WC) >> 6; + while (wait-- > 0) { + count = 0; + while (count++ < 16384) { + newtime = inl(emu->port + WC) >> 6; + if (newtime != curtime) + break; + } + if (count >= 16384) + break; + curtime = newtime; + } +} + +unsigned short snd_emu10k1_ac97_read(ac97_t *ac97, unsigned short reg) +{ + emu10k1_t *emu = ac97->private_data; + unsigned long flags; + unsigned short val; + + spin_lock_irqsave(&emu->emu_lock, flags); + outb(reg, emu->port + AC97ADDRESS); + val = inw(emu->port + AC97DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); + return val; +} + +void snd_emu10k1_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short data) +{ + emu10k1_t *emu = ac97->private_data; + unsigned long flags; + + spin_lock_irqsave(&emu->emu_lock, flags); + outb(reg, emu->port + AC97ADDRESS); + outw(data, emu->port + AC97DATA); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + +/* + * convert rate to pitch + */ + +unsigned int snd_emu10k1_rate_to_pitch(unsigned int rate) +{ + static u32 logMagTable[128] = { + 0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2, + 0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5, + 0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081, + 0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191, + 0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7, + 0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829, + 0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e, + 0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26, + 0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d, + 0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885, + 0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899, + 0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c, + 0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3, + 0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3, + 0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83, + 0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df + }; + static char logSlopeTable[128] = { + 0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58, + 0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53, + 0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f, + 0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b, + 0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47, + 0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44, + 0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41, + 0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e, + 0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c, + 0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39, + 0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37, + 0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35, + 0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34, + 0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32, + 0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30, + 0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f + }; + int i; + + if (rate == 0) + return 0; /* Bail out if no leading "1" */ + rate *= 11185; /* Scale 48000 to 0x20002380 */ + for (i = 31; i > 0; i--) { + if (rate & 0x80000000) { /* Detect leading "1" */ + return (((unsigned int) (i - 15) << 20) + + logMagTable[0x7f & (rate >> 24)] + + (0x7f & (rate >> 17)) * + logSlopeTable[0x7f & (rate >> 24)]); + } + rate <<= 1; + } + + return 0; /* Should never reach this point */ +} + |