Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

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 000000000000..2dc16a841fa1
--- /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;
+}