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Diffstat (limited to 'sound/oss/emu10k1/hwaccess.c')
| -rw-r--r-- | sound/oss/emu10k1/hwaccess.c | 507 |
1 files changed, 507 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/hwaccess.c b/sound/oss/emu10k1/hwaccess.c new file mode 100644 index 00000000000..2dc16a841fa --- /dev/null +++ b/sound/oss/emu10k1/hwaccess.c @@ -0,0 +1,507 @@ +/* + ********************************************************************** + * hwaccess.c -- Hardware access layer + * Copyright 1999, 2000 Creative Labs, Inc. + * + ********************************************************************** + * + * Date Author Summary of changes + * ---- ------ ------------------ + * October 20, 1999 Bertrand Lee base code release + * December 9, 1999 Jon Taylor rewrote the I/O subsystem + * + ********************************************************************** + * + * 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., 675 Mass Ave, Cambridge, MA 02139, + * USA. + * + ********************************************************************** + */ + +#include <asm/io.h> + +#include "hwaccess.h" +#include "8010.h" +#include "icardmid.h" + +/************************************************************************* +* Function : srToPitch * +* Input : sampleRate - sampling rate * +* Return : pitch value * +* About : convert sampling rate to pitch * +* Note : for 8010, sampling rate is at 48kHz, this function should * +* be changed. * +*************************************************************************/ +u32 srToPitch(u32 sampleRate) +{ + int i; + + /* FIXME: These tables should be defined in a headerfile */ + 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 + }; + + if (sampleRate == 0) + return 0; /* Bail out if no leading "1" */ + + sampleRate *= 11185; /* Scale 48000 to 0x20002380 */ + + for (i = 31; i > 0; i--) { + if (sampleRate & 0x80000000) { /* Detect leading "1" */ + return (u32) (((s32) (i - 15) << 20) + + logMagTable[0x7f & (sampleRate >> 24)] + + (0x7f & (sampleRate >> 17)) * logSlopeTable[0x7f & (sampleRate >> 24)]); + } + sampleRate = sampleRate << 1; + } + + DPF(2, "srToPitch: BUG!\n"); + return 0; /* Should never reach this point */ +} + +/******************************************* +* write/read PCI function 0 registers * +********************************************/ +void emu10k1_writefn0(struct emu10k1_card *card, u32 reg, u32 data) +{ + unsigned long flags; + + if (reg & 0xff000000) { + u32 mask; + u8 size, offset; + + size = (reg >> 24) & 0x3f; + offset = (reg >> 16) & 0x1f; + mask = ((1 << size) - 1) << offset; + data = (data << offset) & mask; + reg &= 0x7f; + + spin_lock_irqsave(&card->lock, flags); + data |= inl(card->iobase + reg) & ~mask; + outl(data, card->iobase + reg); + spin_unlock_irqrestore(&card->lock, flags); + } else { + spin_lock_irqsave(&card->lock, flags); + outl(data, card->iobase + reg); + spin_unlock_irqrestore(&card->lock, flags); + } + + return; +} + +#ifdef DBGEMU +void emu10k1_writefn0_2(struct emu10k1_card *card, u32 reg, u32 data, int size) +{ + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + + if (size == 32) + outl(data, card->iobase + (reg & 0x1F)); + else if (size == 16) + outw(data, card->iobase + (reg & 0x1F)); + else + outb(data, card->iobase + (reg & 0x1F)); + + spin_unlock_irqrestore(&card->lock, flags); + + return; +} +#endif /* DBGEMU */ + +u32 emu10k1_readfn0(struct emu10k1_card * card, u32 reg) +{ + u32 val; + unsigned long flags; + + if (reg & 0xff000000) { + u32 mask; + u8 size, offset; + + size = (reg >> 24) & 0x3f; + offset = (reg >> 16) & 0x1f; + mask = ((1 << size) - 1) << offset; + reg &= 0x7f; + + spin_lock_irqsave(&card->lock, flags); + val = inl(card->iobase + reg); + spin_unlock_irqrestore(&card->lock, flags); + + return (val & mask) >> offset; + } else { + spin_lock_irqsave(&card->lock, flags); + val = inl(card->iobase + reg); + spin_unlock_irqrestore(&card->lock, flags); + return val; + } +} + +void emu10k1_timer_set(struct emu10k1_card * card, u16 data) +{ + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + outw(data & TIMER_RATE_MASK, card->iobase + TIMER); + spin_unlock_irqrestore(&card->lock, flags); +} + +/************************************************************************ +* write/read Emu10k1 pointer-offset register set, accessed through * +* the PTR and DATA registers * +*************************************************************************/ +#define A_PTR_ADDRESS_MASK 0x0fff0000 +void sblive_writeptr(struct emu10k1_card *card, u32 reg, u32 channel, u32 data) +{ + u32 regptr; + unsigned long flags; + + regptr = ((reg << 16) & A_PTR_ADDRESS_MASK) | (channel & PTR_CHANNELNUM_MASK); + + if (reg & 0xff000000) { + u32 mask; + u8 size, offset; + + size = (reg >> 24) & 0x3f; + offset = (reg >> 16) & 0x1f; + mask = ((1 << size) - 1) << offset; + data = (data << offset) & mask; + + spin_lock_irqsave(&card->lock, flags); + outl(regptr, card->iobase + PTR); + data |= inl(card->iobase + DATA) & ~mask; + outl(data, card->iobase + DATA); + spin_unlock_irqrestore(&card->lock, flags); + } else { + spin_lock_irqsave(&card->lock, flags); + outl(regptr, card->iobase + PTR); + outl(data, card->iobase + DATA); + spin_unlock_irqrestore(&card->lock, flags); + } +} + +/* ... : data, reg, ... , TAGLIST_END */ +void sblive_writeptr_tag(struct emu10k1_card *card, u32 channel, ...) +{ + va_list args; + + unsigned long flags; + u32 reg; + + va_start(args, channel); + + spin_lock_irqsave(&card->lock, flags); + while ((reg = va_arg(args, u32)) != TAGLIST_END) { + u32 data = va_arg(args, u32); + u32 regptr = (((reg << 16) & A_PTR_ADDRESS_MASK) + | (channel & PTR_CHANNELNUM_MASK)); + outl(regptr, card->iobase + PTR); + if (reg & 0xff000000) { + int size = (reg >> 24) & 0x3f; + int offset = (reg >> 16) & 0x1f; + u32 mask = ((1 << size) - 1) << offset; + data = (data << offset) & mask; + + data |= inl(card->iobase + DATA) & ~mask; + } + outl(data, card->iobase + DATA); + } + spin_unlock_irqrestore(&card->lock, flags); + + va_end(args); + + return; +} + +u32 sblive_readptr(struct emu10k1_card * card, u32 reg, u32 channel) +{ + u32 regptr, val; + unsigned long flags; + + regptr = ((reg << 16) & A_PTR_ADDRESS_MASK) | (channel & PTR_CHANNELNUM_MASK); + + if (reg & 0xff000000) { + u32 mask; + u8 size, offset; + + size = (reg >> 24) & 0x3f; + offset = (reg >> 16) & 0x1f; + mask = ((1 << size) - 1) << offset; + + spin_lock_irqsave(&card->lock, flags); + outl(regptr, card->iobase + PTR); + val = inl(card->iobase + DATA); + spin_unlock_irqrestore(&card->lock, flags); + + return (val & mask) >> offset; + } else { + spin_lock_irqsave(&card->lock, flags); + outl(regptr, card->iobase + PTR); + val = inl(card->iobase + DATA); + spin_unlock_irqrestore(&card->lock, flags); + + return val; + } +} + +void emu10k1_irq_enable(struct emu10k1_card *card, u32 irq_mask) +{ + u32 val; + unsigned long flags; + + DPF(2,"emu10k1_irq_enable()\n"); + + spin_lock_irqsave(&card->lock, flags); + val = inl(card->iobase + INTE) | irq_mask; + outl(val, card->iobase + INTE); + spin_unlock_irqrestore(&card->lock, flags); + return; +} + +void emu10k1_irq_disable(struct emu10k1_card *card, u32 irq_mask) +{ + u32 val; + unsigned long flags; + + DPF(2,"emu10k1_irq_disable()\n"); + + spin_lock_irqsave(&card->lock, flags); + val = inl(card->iobase + INTE) & ~irq_mask; + outl(val, card->iobase + INTE); + spin_unlock_irqrestore(&card->lock, flags); + return; +} + +void emu10k1_clear_stop_on_loop(struct emu10k1_card *card, u32 voicenum) +{ + /* Voice interrupt */ + if (voicenum >= 32) + sblive_writeptr(card, SOLEH | ((0x0100 | (voicenum - 32)) << 16), 0, 0); + else + sblive_writeptr(card, SOLEL | ((0x0100 | voicenum) << 16), 0, 0); + + return; +} + +static void sblive_wcwait(struct emu10k1_card *card, u32 wait) +{ + volatile unsigned uCount; + u32 newtime = 0, curtime; + + curtime = emu10k1_readfn0(card, WC_SAMPLECOUNTER); + while (wait--) { + uCount = 0; + while (uCount++ < TIMEOUT) { + newtime = emu10k1_readfn0(card, WC_SAMPLECOUNTER); + if (newtime != curtime) + break; + } + + if (uCount >= TIMEOUT) + break; + + curtime = newtime; + } +} + +u16 emu10k1_ac97_read(struct ac97_codec *codec, u8 reg) +{ + struct emu10k1_card *card = codec->private_data; + u16 data; + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + + outb(reg, card->iobase + AC97ADDRESS); + data = inw(card->iobase + AC97DATA); + + spin_unlock_irqrestore(&card->lock, flags); + + return data; +} + +void emu10k1_ac97_write(struct ac97_codec *codec, u8 reg, u16 value) +{ + struct emu10k1_card *card = codec->private_data; + unsigned long flags; + + spin_lock_irqsave(&card->lock, flags); + + outb(reg, card->iobase + AC97ADDRESS); + outw(value, card->iobase + AC97DATA); + outb( AC97_EXTENDED_ID, card->iobase + AC97ADDRESS); + spin_unlock_irqrestore(&card->lock, flags); +} + +/********************************************************* +* MPU access functions * +**********************************************************/ + +int emu10k1_mpu_write_data(struct emu10k1_card *card, u8 data) +{ + unsigned long flags; + int ret; + + if (card->is_audigy) { + if ((sblive_readptr(card, A_MUSTAT,0) & MUSTAT_ORDYN) == 0) { + sblive_writeptr(card, A_MUDATA, 0, data); + ret = 0; + } else + ret = -1; + } else { + spin_lock_irqsave(&card->lock, flags); + + if ((inb(card->iobase + MUSTAT) & MUSTAT_ORDYN) == 0) { + outb(data, card->iobase + MUDATA); + ret = 0; + } else + ret = -1; + + spin_unlock_irqrestore(&card->lock, flags); + } + + return ret; +} + +int emu10k1_mpu_read_data(struct emu10k1_card *card, u8 * data) +{ + unsigned long flags; + int ret; + + if (card->is_audigy) { + if ((sblive_readptr(card, A_MUSTAT,0) & MUSTAT_IRDYN) == 0) { + *data = sblive_readptr(card, A_MUDATA,0); + ret = 0; + } else + ret = -1; + } else { + spin_lock_irqsave(&card->lock, flags); + + if ((inb(card->iobase + MUSTAT) & MUSTAT_IRDYN) == 0) { + *data = inb(card->iobase + MUDATA); + ret = 0; + } else + ret = -1; + + spin_unlock_irqrestore(&card->lock, flags); + } + + return ret; +} + +int emu10k1_mpu_reset(struct emu10k1_card *card) +{ + u8 status; + unsigned long flags; + + DPF(2, "emu10k1_mpu_reset()\n"); + if (card->is_audigy) { + if (card->mpuacqcount == 0) { + sblive_writeptr(card, A_MUCMD, 0, MUCMD_RESET); + sblive_wcwait(card, 8); + sblive_writeptr(card, A_MUCMD, 0, MUCMD_RESET); + sblive_wcwait(card, 8); + sblive_writeptr(card, A_MUCMD, 0, MUCMD_ENTERUARTMODE); + sblive_wcwait(card, 8); + status = sblive_readptr(card, A_MUDATA, 0); + if (status == 0xfe) + return 0; + else + return -1; + } + + return 0; + } else { + if (card->mpuacqcount == 0) { + spin_lock_irqsave(&card->lock, flags); + outb(MUCMD_RESET, card->iobase + MUCMD); + spin_unlock_irqrestore(&card->lock, flags); + + sblive_wcwait(card, 8); + + spin_lock_irqsave(&card->lock, flags); + outb(MUCMD_RESET, card->iobase + MUCMD); + spin_unlock_irqrestore(&card->lock, flags); + + sblive_wcwait(card, 8); + + spin_lock_irqsave(&card->lock, flags); + outb(MUCMD_ENTERUARTMODE, card->iobase + MUCMD); + spin_unlock_irqrestore(&card->lock, flags); + + sblive_wcwait(card, 8); + + spin_lock_irqsave(&card->lock, flags); + status = inb(card->iobase + MUDATA); + spin_unlock_irqrestore(&card->lock, flags); + + if (status == 0xfe) + return 0; + else + return -1; + } + + return 0; + } +} + +int emu10k1_mpu_acquire(struct emu10k1_card *card) +{ + /* FIXME: This should be a macro */ + ++card->mpuacqcount; + + return 0; +} + +int emu10k1_mpu_release(struct emu10k1_card *card) +{ + /* FIXME: this should be a macro */ + --card->mpuacqcount; + + return 0; +} |